saitou kichisuke 斎藤吉助

… Alternative Names

Researcher Number	30018949
External Links
Affiliation (Current)	2020: 新潟大学, 自然科学系, フェロー
Affiliation (based on the past Project Information) *help	2014 – 2019: 新潟大学, 自然科学系, フェロー 2005 – 2014: Niigata University, Institute of Science of Technology, Professor, 自然科学系, 教授 1987 – 2005: 新潟大学, 理学部, 教授
Review Section/Research Field	Principal Investigator 解析学 / Basic analysis / Basic analysis Except Principal Investigator Basic analysis / 解析学 / 代数学・幾何学 / Basic analysis / General mathematics (including Probability theory/Statistical mathematics) / Geometry
Keywords	Principal Investigator 作用素環 / バナッハ空間 / James定数 / von Neumann-Jordan定数 / smoothness / 一様凸性 / 不変部分空間 / 三角不等式 / absolute norm / 一様凸 … More Except Principal Investigator fixed point property / 不変部分空間 / バナッハ空間のψ直和 / absolute norm / sharp triangle inequality / weak nearly uniform smoothness / aspherical多様体 / von Neumann algebra / ブルゲン環 / 極大イデアル空間 / ブラシュケ積 / invariant subspace / バナッハ環 / スペクトル / von Neumann-Jordan定数 / James定数 / Banach space / convex function / geometric constant / 可換Banach環 / ψ-direct sum of Banach spaces / uniform non-l^n_1-ness / 多目的数理計画理論 / 変換群 / 作用素環 / 解析関数空間 / コロフキンの定理 / invariant subspace(不変部分空間) / Hilbert spaces(ヒルベルト空間) / analytic crossed products(解析的接合積) / crossed product / analytic subalgebra / maximality / semigroup / 関数解析 / 等距離写像 / 不動点性 / バナッハ空間のφ直和 / uniform non-squareness / 凸関数 / バナッハ空間の幾何学的定数 / バナッハ空間の幾何学 / Banach space geometry / バナッハ空間 / Jones index / Fourier multiplier / 作用関数 / spectrum / commutative Banach algebras / commutative Banach algebra / ring homomorphism / composition operator / sharp uniform convexity / type-cotype / strong type-cotype / Banach spaces / p-uniform smoothness / q-uniform convexity / Hanner-type inequality / normal structure / アインシュタイン多様体 / 概ケ-ラ-多様体 / 調和写像 / ト-ラス作用 / Toeplitz作用素 / ダイナミック・ゲ-ム / ゲ-ム理論 / 確率論 / 凸解析理論 / 曲面論 / 関数方程式論 / CRー構造 / リ-群 / アスフェリカル多様体 / 概複素構造 / リーマン計量 / フィンスラー計量 / ホイヘンスの原理 / 極小曲面 / 情報幾何学 / 非有界微分子 / イオン・ノイマン代数 / テプリッツ作用素 / 等質空間 / 力学系 / m人ゲーム / 非可換Lpー空間 / 密度関数 / 最適化理論 / 最適解 / 概ケーラー多様体 / アインシュタイン空間 / 曲率斉次空間 / 失役点 / ラグランジアン力学系 / 解析的接合積 / マルコフ決定過程 / 楕円関数 / ハンケル作用素 / H^∞-最適制御 / BKW-作用素 / ケーラー多様体 / レビ問題 / ハ-ディ空間 / テープリッツ作用素 / semi group / von Neumannm algebra / 可換バナッハ環 / 末梢スペクトル / 等距離同形写像 / uniform non [ell]^n 1-ness / Sharp mean inequality / modulus of smoothness / modulus of convexity / uniform non [ell]^n_1-ness / uniform non[ell]^n_l-ness / C環 / 代数構造 / ユニタリー群 / 正値可逆元 / Thmpson距離 / factorization theorem / inequality / banach space / operator inequality / operator theory / gyrogroup / gyrovector space / Loewner-Heinz inequality / Furuta inequality / Schur / Hardy-Littlewood-Polya / Karamata / order preserving / WN uniform smoothness / partial [ell]_1 norm / partial [ell]_1-norm / 国際情報交換 / ψ-direct sum / 弱uniform smooth性 / [ell]_1 type norm / 直和 / uniform non-square性 / uniform non-[ell]-n_1性 / James型定数 / Geometry of Banach space / direct sum / James type constant / バナッハ空間の直和 / 幾何学的定数 / リー群 / 概ケーラー空間 / スカラー曲率 / 定曲率空間 / ジョーンズの指数 / 完全正値写像 / 量子系のエントロピー理論 / 量子群とその表現 / 無限次元リー群、リー環 / 発展方程式 / シュレデインガー作用素 / 佐藤の超関数 / 非有界作用素環 / 情報力学 / 非線形関数解析 / 拡散方程式 / 幾何学的方程式 / 対称空間上の調和解析 / 佐藤超関数 / Completely positive maps / Entropies of quantum systems / Quantum groups / Infinite-dimensional Lie groups and Lie algebras / Evolution equation / Schrodinger operators / Microlocal analysis / 局所コンパクトabel群 / Wlener-Pitt現象 / Apostol環 / decomposable作用素 / Wiener-Pitt現象 / 測度 / キーワード1局所コンパクトabel群 / キーワード2Wiener-Pitt現象 / キーワード3自然なスペクトル / キーワード4Fourier multiplier / キーワード5Apostol環 / キーワード6Douglas環 / キーワード7decomposable作用素 / キーワード8作用関数 / commtative Banach algebra / locally compact abelian group / Wiener-Pitt phenomenum / operating function / Apostol algebra / decomposable operator / 有界解析関数 / 特異内部関数 / グリースン部分 / コロフキン型定理 / 有界解析関数環 / ダグラス環 / 閉イデアル / BKW作用案 / Spaces of analytic functions / bounded analytic function / maximal ideal space / Blaschke product / singular inner function / Gleason part / Korovkin type theorem / 量子情報 / エントロピー / データ圧縮 / コンパクト写像 / 再生核Hilbert空間 / quantum information / entropy / data compression / compact mapping / reproducing kernel Hilbert space / 環準同形写像 / 合成作用素 / 超分離性 / 関数環 / 関数空間 / ring homomorphisms / maximal ideal spaces / operating functions / composition operators / ultraseparating / function algebras / function spaces / Composition operator / norm inequality / typ-cotype / Convex function / φ-direct sum of Banach spaces / norm inequalitiy / Hanner型不等式 / random Clarkson不等式 / Banach空間のψ-直和 / w.nearly unif.smoothness / Bn-convexity / strong type p / strong random Clarkson不等式 / random Clarkson inequality / B_n-convexity / 代数方程式 / algebraic equations / uniform non-1^n_1-ness / von Neumann-Jordan型定数 / Weak nearly uniform smoothness / Von Neumann-Jordan型定数 / von Neumann-Jordan type constant / Birkhoff直交 / Radon空間 / symmtric point / Birkhoff orthogonality / Radon space / symmetric point / C^ algebra / von Neumann Jordann 定数 / Birkhoff 直交 / Radon 空間 / James constant / NJ constant Less

Geometric constants of Banach Spaces and their applicationsOngoing
- Principal Investigator
  
  小室直人
- Project Period (FY)
  2017 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Hokkaido University of Education
A study of geometric structure of Banach spaces and its applicationsPrincipal Investigator
- Principal Investigator
  
  SAITO KICHI-SUKE
- Project Period (FY)
  2015 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
Research on geometric structures of Banach and function spaces with direct sums
- Principal Investigator
  
  KATO Mikio
- Project Period (FY)
  2014 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Shinshu University
Various constants and norm inequalities in Banach spaces and its applicationsPrincipal Investigator
- Principal Investigator
  
  SAITO Kichisuke
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
Research on Jordan type model theory of weighted composition operators on Hilbert spaces
- Principal Investigator
  
  Watanabe Keiichi
- Project Period (FY)
  2011 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
Research on geometric structures of Banach and function spaces with application of their [psi]-direct sums
- Principal Investigator
  
  KATO Mikio
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Shinshu University
Study on preserver problems on Banach alebras
- Principal Investigator
  
  HATORI Osamu
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
On many approaches of the invariantsubspace problem in Hilbert spaces
- Principal Investigator
  
  OHWADA Tomoyoshi
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Shizuoka University
The study of norm structure and various constants of Banach spaces, and its applicationsPrincipal Investigator
- Principal Investigator
  
  SAITO Kichi-Suke
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
Research on geometric structures of Banach and function spaces with applications
- Principal Investigator
  
  KATO Mikio
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Kyushu Institute of Technology
Study on algebraic properties of maps between Banach algebras which preserve topological quantities
- Principal Investigator
  
  HATORI Osamu
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
The structure of invariant subspaces in Hilbert spaces and related topics
- Principal Investigator
  
  OHWADA Tomoyoshi
- Project Period (FY)
  2006 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Shizuoka University
  Tsuruoka National College of Technology
The form of unit balls and the constants of Banach spaces and their applicationsPrincipal Investigator
- Principal Investigator
  
  SAITO Kichi-suke
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
RESEARCH ON GEOMETRIC STRUCTURES OF BANACH AND FUNCTION SPACES AND ψ-DIRECT SUMS
- Principal Investigator
  
  KATO Mikio
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Kyushu Institute of Technology
Research on algebraic equations with coefficients in Banach algebras
- Principal Investigator
  
  HATORI Osamu
- Project Period (FY)
  2005 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
Several constants of Banach spaces and its applicationPrincipal Investigator
- Principal Investigator
  
  SAITO Kichi-suke
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
RESEARCH ON GEOMETRY OF BANACH AND FUNCTION SPACES AND INEQUALITIES
- Principal Investigator
  
  KATO Mikio
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  KYUSHU INSTITUTE OF TECHNOLOGY
The norm structure of Banach spaces and its application.Principal Investigator
- Principal Investigator
  
  SAITO Kichi-suke
- Project Period (FY)
  2002 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  NIIGATA UNIVERSITY
Research on automatic linearities for ring homomorphisms on commutative Banach algebras
- Principal Investigator
  
  HATORI Osamu
- Project Period (FY)
  2002 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  NIIGATA UNIVERSITY
RESEARCH ON GEOMETRIC STRUCTURES OF BANACH AND FUNCTION SPACES AND APPLICATIONS
- Principal Investigator
  
  KATO Mikio
- Project Period (FY)
  2002 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Kyushu Institute Of Technology
Von Neumann-Jordan constant of Banach spaces and its applicationPrincipal Investigator
- Principal Investigator
  
  SAITO Kichi-suke
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  NIIGATA UNIVERSITY
Research on operating functions on function spaces
- Principal Investigator
  
  HATORI Osamu
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  NIIGATA UNIVERSITY
Research on families of functions determining structures of spaces of analytic functions
- Principal Investigator
  
  IZUCHI Keiji
- Project Period (FY)
  1998 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (B).
- Research Field
  
  Basic analysis
- Research Institution
  NIIGATA UNIVERSITY
Application of entropy theory to the problem of data compression
- Principal Investigator
  
  AKASHI Shigeo
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  NIIGATA UNIVERSITY
The structure of Hilbert modules over operator algebras and its applicationPrincipal Investigator
- Principal Investigator
  
  SAITO Kichi-suke
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
Research on operators with natural spectrum
- Principal Investigator
  
  HATORI Osamu
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
作用素環の手法による作用素と不変部分空間の研究Principal Investigator
- Principal Investigator
  
  斎藤吉助
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
多変数Hardy空間上のToeplitz型作用素と不変部分空間の相互関係
- Principal Investigator
  
  泉池敬司
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
トーラス上の不変部分空間の構造
- Principal Investigator
  
  泉池敬司
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
微分可能多様体上の幾何学的諸構造に関する研究
- Principal Investigator
  
  関川浩永
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Niigata University
作用素論的手法による解析関数空間の構造の研究
- Principal Investigator
  
  泉池敬司
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
作用素環の手法による作用素の構造の研究とその応用Principal Investigator
- Principal Investigator
  
  斎藤吉助
- Project Period (FY)
  1993
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
最適化基礎理論の数学的手法による研究
- Principal Investigator
  
  田中謙輔
- Project Period (FY)
  1993
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Niigata University
多様体上の幾何学的諸構造に関する研究
- Principal Investigator
  
  関川浩永
- Project Period (FY)
  1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Niigata University
CR構造の局所埋め込み問題について
- Principal Investigator
  
  渡辺誠治
- Project Period (FY)
  1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
多様体の幾何学
- Principal Investigator
  
  渡部剛
- Project Period (FY)
  1991
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Niigata University
作用素環における散乱理論の研究とその応用Principal Investigator
- Principal Investigator
  
  斎藤吉助
- Project Period (FY)
  1991
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
STUDIES ON FUNCTIONAL AND REAL ANALYSES VIA UNIVERSAL AND UNIFIED APPROACH
- Principal Investigator
  
  OKAYASU Takateru
- Project Period (FY)
  1991 – 1992
- Research Category
  
  Grant-in-Aid for Co-operative Research (A)
- Research Field
  
  解析学
- Research Institution
  Yamagata University
ゲ-ム理論の数学的手法による研究
- Principal Investigator
  
  田中謙輔
- Project Period (FY)
  1990
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Niigata University
CR構造の局所埋め込み問題について
- Principal Investigator
  
  赤堀隆夫
- Project Period (FY)
  1990
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University
Co-Operative research of Recent Topics in Operator AlgebrasPrincipal Investigator
- Principal Investigator
  
  SAITO Kichi-suke
- Project Period (FY)
  1990 – 1991
- Research Category
  
  Grant-in-Aid for Co-operative Research (A)
- Research Field
  
  解析学
- Research Institution
  Niigata University
微分可能多様体上の幾何学
- Principal Investigator
  
  SEIKIGAWA Kouei
- Project Period (FY)
  1989
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Niigata University
多様体の幾何学
- Principal Investigator
  
  渡部剛
- Project Period (FY)
  1988
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Niigata University
作用素環上の自己同型群の構造とその応用Principal Investigator
- Principal Investigator
  
  斎藤吉助
- Project Period (FY)
  1987
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Niigata University

[Journal Article] A characterization of Radon planes using generalized Day James spaces2020
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Ann. Funct. Anal.
  
  Volume: 11 Pages: 62-74
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] A characterization of Radon planes using generalized Day-James spaces2019
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Ann. Funct. Anal.
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] Geometrical constants of Day James spaces2019
- Author(s)
  三谷健一、斎藤吉助
- Journal Title
  
  数理兼講究録
  
  Volume: 2143 Pages: 147-153
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] Von Neumann-Jordan constant of generalized Bana\'{s}-Fr\c{a}czek spaces2019
- Author(s)
  K.-I. Mitani, K.-S. Saito, Y. Takahashi
- Journal Title
  
  Proceedings of the 10th International Conference on Nonlinear Analysis and Convex Analysis
  
  Volume: special issue Pages: 227-232
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] 精密化された三角不等式の等号成立条件について2019
- Author(s)
  大和田智義、斎藤吉助、三谷健一
- Journal Title
  
  数理兼講究録
  
  Volume: 2143 Pages: 141-146
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] A characterization of Radon planes using generalized Day-James spaces2019
- Author(s)
  Komuro Naoto、Kichi-Suke Saito、 Ryotaro　Tanaka
- Journal Title
  
  Ann. Funct. Anal.
  
  Volume: ---
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On symmetry of Birkhoff orthogonality in the positive cones of C^*-algebras with applications2019
- Author(s)
  Komuro Naoto、Kichi-Suke Saito、 Ryotaro　Tanaka
- Journal Title
  
  J. Math. Anal. Appl.
  
  Volume: 474 Pages: 1488-1497
- DOI
  10.1016/j.jmaa.2019.02.033
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920, KAKENHI-PROJECT-17K05287
[Journal Article] Characteristic properties of Banach spaces with James constant root 22018
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  J. Nonlinear Convex Analysis
  
  Volume: 19 Pages: 1665-1673
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] A sufficient condition that J(X*) = J(X) holds for a Banach space X2018
- Author(s)
  Komuro Naoto、Kichi-Suke Saito、 Ryotaro　Tanaka
- Journal Title
  
  Tokyo J. Math.
  
  Volume: 41 Pages: 219-223
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Von Neumann-Jordan constant of generalized Banas-Fraczek spaces2018
- Author(s)
  三谷健一, 斎藤吉助, 高橋泰嗣
- Journal Title
  
  数理研講究禄
  
  Volume: 2095 Pages: 198-202
- Open Access
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Characteristic properties of Banach spaces with James constant √22018
- Author(s)
  Komuro Naoto、Kichi-Suke Saito、 Ryotaro　Tanaka
- Journal Title
  
  J. Nonlinear Convex Analysis
  
  Volume: 19 Pages: 1665-1673
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] A sufficient condition that J(X^*)=J(X) holds for a Banach space X2018
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Tokyo J. Mathematics
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26400131
[Journal Article] Rotation invariant norms on R2 and geometric constants2018
- Author(s)
  斎藤吉助, 小室直人, 田中亮太朗
- Journal Title
  
  数理研講究禄
  
  Volume: 2065 Pages: 94-99
- Open Access
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Symmetric points for (strong) Birkhoff orthogonality in von Neumann algebras with applications to preserver problems2018
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  J. Math. Anal.Appl.
  
  Volume: 463 Pages: 1109-1131
- DOI
  10.1016/j.jmaa.2018.03.068
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K05287, KAKENHI-PROJECT-15K04920
[Journal Article] von Neumann-Jordan constant of generalized Banach Fraczek spaces2018
- Author(s)
  Ken-Ichi Mitani, Yasuji Takahashi, Kichi-Suke Saito
- Journal Title
  
  J. Nonlinear Convex Analysis
  
  Volume: 19 Pages: 1705-1709
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] Symmetric points for (strong) Birkhoff orthogonality in von Neumann algebras with applications to preserver problems2018
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  J. Math. Anal. Appl.
  
  Volume: 463 Pages: 1109-1131
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On von Neumann-Jordan constant of l_p-ｌ_q spaces2018
- Author(s)
  Ken-Ichi Mitani, Yasuji Takahashi, Kichi-Suke Saito
- Journal Title
  
  J. Nonlinear Convex Anal.
  
  Volume: 19 Pages: 1705-1709
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Symmetric points for (strong) Birkhoff orthogonality in von Neumann algebras with applications to preserver problems2018
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  J. Mathematical Analysis and Applications
  
  Volume: 463 Pages: 1109-1131
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26400131
[Journal Article] A sufficient condition that J(X^*) = J(X) holds for a Banach space X2018
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Tokyo J. Math.
  
  Volume: ---
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On the structure of Banach spaces with James constant √22018
- Author(s)
  斎藤吉助, 小室直人, 田中亮太朗
- Journal Title
  
  数理研講究禄
  
  Volume: 2073 Pages: 72-79
- Open Access
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  KAKENHI-PROJECT-15K04920
[Journal Article] A sufficient condition that J(X*)=J(X) holds for a Banach space X2018
- Author(s)
  Naoto Komuro, Kichi-Suke Saito and Ryotaro Tanaka
- Journal Title
  
  Tokyo J. Math.
  
  Volume: 掲載確定
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] Left symmetric points for Birkhoff orthogonality in　the preduals of von Neumann algebras2018
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Bull. Aust. Math. Soc.
  
  Volume: 98 Pages: 494-501
- DOI
  10.1017/s0004972718000849
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K05287, KAKENHI-PROJECT-15K04920
[Journal Article] A sufficient condition that J(X^*)=J(X) holds for a Banach space X2018
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Tokyo J. Math.
  
  Volume: 41 Pages: 219-223
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] Geometric constants of $\pi/2$ -rotation invariant norms on $\mathbb{R}^{2}$2017
- Author(s)
  Yukino Tomizawa, Ken-Ichi Mitani, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Annals of Functional Analysis
  
  Volume: 8 Pages: 215-230
- DOI
  10.1215/20088752-0000007x
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-16J01162, KAKENHI-PROJECT-16K05212, KAKENHI-PROJECT-17K05287
[Journal Article] On the class of Banach spaces with James constant √2 III2017
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Math. Inequal. Appl.
  
  Volume: 20 Pages: 865-887
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] New geometric notions of Banach spaces using psi direct sums2017
- Author(s)
  Kichi-Suke Saito and Ryotaro Tanaka
- Journal Title
  
  Linear and Nonlinear Analysis
  
  Volume: 3 Pages: 311-320
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] Geometric constants of π/2-rotation invariant norms on R^22017
- Author(s)
  Yukino Tomizawa, Ken-Ichi Mitani, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Ann Funct. Anal.
  
  Volume: 8 Pages: 215-230
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] 最良のJames定数を持つバナッハ空間の特徴付けとそのLassak問題への応用2017
- Author(s)
  田中亮太朗, 斎藤吉助, 小室直人
- Journal Title
  
  数理研講究禄
  
  Volume: 2041 Pages: 84-91
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On the class of Banach spaces with James constant √２ III2017
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Math Inequal Appl
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Geometric constants of π/2-rotation invariant norms on R^22017
- Author(s)
  Yukino Tomizawa, Ken-Ichi Mitani, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Ann. Funct. Anal.
  
  Volume: 8 Pages: 215-230
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] A Comparison Between James and von Neumann?Jordan Constants2017
- Author(s)
  Komuro Naoto, Mitani Ken-Ichi, Saito Kichi-Suke, Tanaka Ryotaro, Tomizawa Yukino
- Journal Title
  
  Mediterranean Journal of Mathematics
  
  Volume: 14 Pages: 1-13
- DOI
  10.1007/s00009-017-0968-9
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16K05212, KAKENHI-PROJECT-17K05287, KAKENHI-PROJECT-16J01162
[Journal Article] Geometric constants of Banach spaces and the matrix norms2017
- Author(s)
  斎藤吉助, 小室直人, 田中亮太朗
- Journal Title
  
  数理研講究禄
  
  Volume: 2033 Pages: 101-105
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] A sufficient condition that J(X^*)=J(X)　holds for a Banach space X2017
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Tokyo J. Math.
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] 2次元ローレンツ空間のJames定数についての最近の発展2017
- Author(s)
  斎藤吉助, 田中亮太朗, 三谷健一
- Journal Title
  
  数理研講究禄
  
  Volume: 2041 Pages: 77-83
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] New geometric notions of Banach spaces using ψ-direct sums2017
- Author(s)
  Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Linear and Nonlinear Analysis
  
  Volume: 3 Pages: 311-320
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On the class of Banach spaces with James constant √2, III2017
- Author(s)
  Komuro Naoto、Saito Kichi-Suke、Tanaka Ryotaro
- Journal Title
  
  Mathematical Inequalities & Applications
  
  Volume: 20 Pages: 865-887
- DOI
  10.7153/mia-20-55
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K05287
[Journal Article] A sufficient condition that J(X^*)=J(X) holds for a Banach space X2017
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Tokyo Journal of Mathematics
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400131
[Journal Article] A comparison between James and von Neumann-Jordan constants2017
- Author(s)
  Naoto Komuro,Ken-Ichi Mitani, Kichi-Suke Saito, Ryotaro Tanaka, Yukino Tomizawa
- Journal Title
  
  Mediterr. J. Math.
  
  Volume: 14
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Von Neumann-Jordan constant of l_p-l_q2017
- Author(s)
  三谷健一, 斎藤吉助, 高橋泰嗣
- Journal Title
  
  数理研講究禄
  
  Volume: 2033 Pages: 101-105
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On the class of Banach spaces with James constant √22016
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Math. Nach.
  
  Volume: --- Pages: 1005-1020
- DOI
  10.1002/mana.201500238
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On the von Neumann-Jordan constant of generalied Banas-Fraczek spaces2016
- Author(s)
  Ken-Ichi Mitani, Yasuji Takahashi, Kichi-Suke Saito
- Journal Title
  
  Linear and Nonlinear Analysis
  
  Volume: 2 Pages: 311-316
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Dual of extremal absolute norms on R^2 and the James constant2016
- Author(s)
  Masahiro Sato, Naoto Komuro, Ken-ichi Mitani, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Banach J. Math. Anal.
  
  Volume: 10 Pages: 251-266
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Dual of extremal absolute norms on R^2 and the James constant2016
- Author(s)
  Masahiro Sato, Naoto Komuro, Ken-Ichi Mitani, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Banach J. Math. Anal.
  
  Volume: 10 Pages: 251-266
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On the upper bound of some geometric constants of absolute normalized norms on R^22016
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito
- Journal Title
  
  Mediter J Math
  
  Volume: 13 Pages: 309-322
- DOI
  10.1007/s00009-014-0485-z
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Another approach of extreme norms on R^22016
- Author(s)
  Shunpei Yokoyama, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  J. Nonlinear Convex Analysis
  
  Volume: 17 Pages: 157-165
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On the class of Banach spaces with James constant sqrt{2}2016
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Mathematische Nachrichten
  
  Volume: 289 Pages: 1005-1020
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400131
[Journal Article] Dual of extremal absolute norms on R2 and the James constant2016
- Author(s)
  Masahiro Sato, Naoto Komuro, Ken-ichi Mitani, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Banach Journal of Mathematical Analysis
  
  Volume: 10 Pages: 251-266
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400131
[Journal Article] On the class of Banach spaces with James constant √2　PartII2016
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Mediter J Math
  
  Volume: 13 Pages: 4039-4061
- DOI
  10.1007/s00009-016-0731-7
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Convex property of James and von Neumann-Jordan constant of absolute norms on R^22015
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ken-ichi Mitani
- Journal Title
  
  Proc. 8th International Conference on Nonlinear Analysis and Convex Analysis
  
  Volume: --- Pages: 301-308
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On James constants of two dimensional Lorentz sequence spaces and its dual2015
- Author(s)
  Ken-Ichi Mitani, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  J. Nonlinear Convex Analysis
  
  Volume: 16 Pages: 2269-2277
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On the convexity of von Neumann-Jordan constant2015
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ken-ichi Mitani, Ryotaro Tanaka
- Journal Title
  
  J. Nonlinear Convex Analysis
  
  Volume: 16 Pages: 2263-2277
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Generalized Beckner's inequalities and its applications to new geometrical properties2015
- Author(s)
  斎藤吉助，田中亮太朗
- Journal Title
  
  数理研講究禄
  
  Volume: 1963 Pages: 108-113
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Skewness of absolute normalized norms on R^22015
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito, Naoto Komuro
- Journal Title
  
  Proc. 8th International Conference on Nonlinear Analysis and Convex Analysis
  
  Volume: --- Pages: 361-367
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] When does the equality J(X^*) = J(X) holds?2015
- Author(s)
  Kichi-Suke Saito, Masahiro Sato, Ryotaro Tanaka
- Journal Title
  
  Acta Math. Sinica, (English serires)
  
  Volume: 31 Pages: 1303-1314
- DOI
  10.1007/s10114-015-4539-3
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Recent progress on Beckner inequalities2015
- Author(s)
  Ryotaro Tanaka, Kichi-Suke Saito
- Journal Title
  
  Proc. 8th International Conference on Nonlinear Analysis and Convex Analysis
  
  Volume: --- Pages: 505-511
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Duality of the James constant of Banach spaces2015
- Author(s)
  田中亮太朗，斎藤吉助，佐藤正博
- Journal Title
  
  数理解析研究所講究禄
  
  Volume: 1963 Pages: 65-70
- Data Source
  KAKENHI-PROJECT-26400131
[Journal Article] New geometric properties of Banach spaces2015
- Author(s)
  Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Math. Nach.
  
  Volume: 288 Pages: 1163-1178
- DOI
  10.1002/mana.201400180
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Extremal structure of absolute normalized norms and the skewness2015
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito, Naoto Komuro
- Journal Title
  
  Linear and Nonlinear Analysis
  
  Volume: 1 Pages: 159-167
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Duality of the James constant of Banach spaces2015
- Author(s)
  田中亮太朗、斎藤吉助，佐藤正博
- Journal Title
  
  数理研講究禄
  
  Volume: 1963 Pages: 65-70
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On the convexity of von Neumann-Jordan constant2015
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ken-ichi Mitani and Ryotaro Tanaka
- Journal Title
  
  J. Nonlinear Convex Analysis
  
  Volume: 16(11) Pages: 2263-2268
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] A characterization of extreme norms on R^22015
- Author(s)
  横山駿平、斎藤吉助,田中亮太朗
- Journal Title
  
  数理研講究禄
  
  Volume: 1935 Pages: 1-5
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Geometric characterizations of Banach spaces using ψ-direct sums2015
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito
- Journal Title
  
  Proc. 8th International Conference on Nonlinear Analysis and Convex Analysis
  
  Volume: --- Pages: 351-359
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] On generalized Beckners's inequality2015
- Author(s)
  Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Anal. Funct. Anal.
  
  Volume: 6 Pages: 267-278
- DOI
  10.15352/afa/06-1-20
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04920
[Journal Article] Characterization of the intermediate values of the triangle inequality II2014
- Author(s)
  Hiroshi Sano, Tamotsu Izumida, Ken-Ichi Mitani, Tomoyoshi Ohwada and Kichi-Suke Saito
- Journal Title
  
  Cent. Eur. J. Math
  
  Volume: 12, no.5 Pages: 778-786
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Orthonormal bases and a structure of finite dimensional normed linear spaces2014
- Author(s)
  Ryotaro Tanaka and Kichi-Suke Saito
- Journal Title
  
  Banach J. Math. Anal.
  
  Volume: 8 Pages: 89-97
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Geometrical constants and characterizations of inner product spaces2014
- Author(s)
  Ryotaro Tanaka, Tomoyoshi Ohwada and Kichi-Suke Saito
- Journal Title
  
  Mathematical Inequalities and Applications
  
  Volume: 17 Pages: 513-520
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26400131
[Journal Article] On skewness and geometrical constants of Banach spaces2014
- Author(s)
  Ken-Ichi Mitani, Kichi-Suke Saito, Yasuji Takahashi
- Journal Title
  
  Banach and Function Spaces
  
  Volume: IV Pages: 337-341
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] A note on finite dimensional normed linear spaces2014
- Author(s)
  Ryotaro Tanaka, Kichi-Suke Saito
- Journal Title
  
  Banach and Function Spaces
  
  Volume: IV Pages: 391-401
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Characterization of the intermediate values of the triangle inequality II2014
- Author(s)
  Hiroshi Sano, Tamotsu Izumida, Ken-Ichi Mitani, Tomoyoshi Ohwada, Kichi-Suke Saito
- Journal Title
  
  Cent. Eur. J. Math.
  
  Volume: 12 Pages: 778-786
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Another approach to characterizations of generalized triangle inequalities in normed spaces2014
- Author(s)
  Tamotsu Izumida, Ken-Ichi Mitani, Kichi-Suke Saito
- Journal Title
  
  Central European Jornal of Mathematics
  
  Volume: 未定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On generalized Beckners's inequality2014
- Author(s)
  Kichi-Suke Saito and Ryotaro Tanaka
- Journal Title
  
  Anal. Funct. Anal
  
  Volume: 7 Pages: 543-549
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On generalized Beckners's inequality2014
- Author(s)
  Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Anal. Funct. Anal.
  
  Volume: 未定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Geometrical constants and characterizations of inner product spaces2014
- Author(s)
  Ryotaro Tanaka, Tomoyoshi Ohwada and Kichi-Suke Saito
- Journal Title
  
  Math. Inequal. Appl
  
  Volume: 17, No.2 Pages: 513-520
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Geometrical constants and characterizations of inner product spaces2014
- Author(s)
  R, Tanaka, T. Ohwada and K.-S. Saito
- Journal Title
  
  Math. Inequal. Appl.
  
  Volume: 17 Pages: 513-520
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540216
[Journal Article] On the Dunkl-Williams constant of normed linear spaces2014
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito and Ryotaro Tanaka
- Journal Title
  
  Proceedings of the Fourth International Symposium on Banach and Function Spaces IV
  
  Pages: 343-351
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Geometrical constants and characterizations of inner product spaces2014
- Author(s)
  Ryotaro Tanaka, Tomoyoshi Ohwada, Kichi-Suke Saito
- Journal Title
  
  Math. Inequal. Appl.
  
  Volume: 17 Pages: 513-520
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] How to calculate James constants of Banach spaces2014
- Author(s)
  Kichi-Suke Saito, Naoto Komuro, Ken-ichi Mitani
- Journal Title
  
  Banach and Function Spaces
  
  Volume: IV Pages: 211-224
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] A note on finite dimensional normed linear spaces2014
- Author(s)
  Ryotaro Tanaka and Kichi-Suke Saito
- Journal Title
  
  Proceedings of the Fourth International Symposium on Banach and Function Spaces IV
  
  Pages: 391-401
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Geometrical constants and characteriza- tions of inner product spaces2014
- Author(s)
  R. Tanaka, T. Ohwada and K.-S. Saito
- Journal Title
  
  Math. Inequal. Appl
  
  Volume: Vol. 17 Pages: 513-520
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540216
[Journal Article] Orthonormal bases and a structure of finite dimensional normed linear spaces2014
- Author(s)
  Ryotaro Tanaka and Kichi-Suke Saito
- Journal Title
  
  Banach J. Math. Anal
  
  Volume: 8, no.1 Pages: 89-97
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On the Dunkl-Williams constant of normed linear spaces2014
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Banach and Function Spaces
  
  Volume: IV Pages: 343-401
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On skewness and geometrical constants of Banach spaces2014
- Author(s)
  Ken-Ichi Mitani, Kichi-Suke Saito and Yasuji Takahashi
- Journal Title
  
  Proceedings of the Fourth International Symposium on Banach and Function Spaces 2012
  
  Pages: 337-341
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] How to calculate James constants of Banach spaces2014
- Author(s)
  Kichi-Suke Saito, Naoto Komuro and Ken-ichi Mitani
- Journal Title
  
  Proceedings of the Fourth International Symposium on Banach and Function Spaces IV
  
  Pages: 211-224
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] How to calculate James constants of Banach spaces2013
- Author(s)
  Kichi-Suke Saito, Naoto Komuro, Ken-ichi Mitani
- Journal Title
  
  Banach and Function Spaces
  
  Volume: IV
- Peer Reviewed
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[Journal Article] On the James constant of extreme absolute norms on R^2 and their dual norms2013
- Author(s)
  Naoto Komuro, Kichi-Suke Saito and Ken-ichi Mitani
- Journal Title
  
  Proceedings of the 7th International Conference on Nonlinear Analysis and Convex Analysis I
  
  Pages: 255-268
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  KAKENHI-PROJECT-23540189
[Journal Article] On the calculation of the Dunkl-Williams constant of normed linear spaces2013
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito and Ryotaro Tanaka
- Journal Title
  
  Central European Jornal of Mathematics
  
  Volume: 11
- DOI
  10.2478/s11533-013-0238-4
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  KAKENHI-PROJECT-23540190
[Journal Article] Geometrical constants and characterizations of inner product spaces2013
- Author(s)
  Ryotaro Tanaka, Tomoyoshi Ohwada, Kichi-Suke Saito
- Journal Title
  
  Math. Inequal. Appl.
  
  Volume: ---
- Peer Reviewed
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  KAKENHI-PROJECT-23540189
[Journal Article] Skewness and James constant of Banach spaces2013
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito, Yasuji Takahashi
- Journal Title
  
  J. Nonlinear and Convex Analysis
  
  Volume: 14 Pages: 115-122
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Kolomogorov's theorem for a properly infinite von Neumann algebra2013
- Author(s)
  Kohei Nakade, Tomoyoshi Ohwada and Kichi-Suke Saito
- Journal Title
  
  J. Math. Anal. Appl
  
  Volume: 401 Pages: 289-292
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] A note on extreme norms on R^22013
- Author(s)
  Kichi-Suke Saito, Ken-ichi Mitani and Naoto Komuro
- Journal Title
  
  Hokkaido Math. J
  
  Volume: 42 Pages: 1-9
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  KAKENHI-PROJECT-23540189
[Journal Article] A note on finite dimensional normed linear spaces2013
- Author(s)
  Ryotaro Tanaka, Kichi-Suke Saito
- Journal Title
  
  Banach and Function Spaces
  
  Volume: IV
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Kolomogorov's theorem for a properly infinite von Neumann algebra2013
- Author(s)
  Kohei Nakade, Tomoyoshi Ohwada, Kichi-Suke Saito
- Journal Title
  
  J. Math. Anal. Appl.
  
  Volume: 401 Pages: 289-292
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Characterizations of regular norms on R^n2013
- Author(s)
  Ryotaro Tanaka, Kichi-Suke Saito
- Journal Title
  
  Nihonkai Math. J.
  
  Volume: 24 Pages: 103-120
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Another approach to Becner's inequality2013
- Author(s)
  Ryotaro Tanaka, Kichi-Suke Saito and Naoto Komuro
- Journal Title
  
  J. Math. Inequal
  
  Volume: 7, no.3 Pages: 543-549
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Skewness and geometrical constant of Banach spaces2013
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito and Yasuji Takahashi
- Journal Title
  
  Proceedings of the 7th International Conference on Nonlinear Analysis and Convex Analysis II
  
  Pages: 23-27
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On the calculation of the Dunkl-Williams constant of normed linear spaces2013
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito and Ryotaro Tanaka
- Journal Title
  
  Central European Jornal of Mathematics
  
  Volume: 11 Pages: 1212-1227
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Skewness and James constant of Banach spaces2013
- Author(s)
  K.-I. Mitani, K.-S. Saito and Y. Takahashi
- Journal Title
  
  J. Nonlinear and Convex Anal
  
  Volume: Vol. 14 Pages: 115-122
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540216
[Journal Article] On the James constant of extreme absolute norms on R^2 and their dual norms2013
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ken-ichi Mitani
- Journal Title
  
  Proceedings of the 7th International Conference on Nonlinear Analysis and Convex Analysis
  
  Volume: I Pages: 255-268
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On skewness and geometrical constants of Banach spaces2013
- Author(s)
  Ken-Ichi Mitani, Kichi-Suke Saito, Yasuji Takahashi
- Journal Title
  
  Banach and Function Spaces
  
  Volume: IV
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] A note on extreme norms on R22013
- Author(s)
  K.-S. Saito, K.-I. Mitani, N. Komuro
- Journal Title
  
  Hokkaido Math. J.
  
  Volume: 42 Pages: 1-9
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540216
[Journal Article] A note on extreme norms on R^22013
- Author(s)
  Kichi-Suke Saito, Ken-ichi Mitani, Naoto Komuro
- Journal Title
  
  Hokkaido Math. J.
  
  Volume: 42 Pages: 1-9
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Skewness and geometrical constant of Banach spaces2013
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito, Yasuji Takahashi
- Journal Title
  
  Proceedings of the 7th International Conference on Nonlinear Analysis and Convex Analysis
  
  Volume: II Pages: 23-27
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Characterizations of regular norms on R^n2013
- Author(s)
  Ryotaro Tanaka and Kichi-Suke Saito
- Journal Title
  
  Nihonkai Math. J
  
  Volume: 24 Pages: 103-120
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Another approach to Becner's inequality2013
- Author(s)
  Ryotaro Tanaka, Kichi-Suke Saito, Naoto Komuro
- Journal Title
  
  J. Math. Inequal.
  
  Volume: 7 Pages: 543-549
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Skewness and James constant of Banach spaces2013
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito and Yasuji Takahashi
- Journal Title
  
  J. Nonlinear and Convex Analysis
  
  Volume: 14, No.1 Pages: 115-122
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] How to calculate geometric constants of Banach apaces2013
- Author(s)
  Kichi-Suke Saito
- Journal Title
  
  Proceedings of the 7th International Conference on Nonlinear Analysis and Convex Analysis
  
  Volume: II Pages: 193-203
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Another approach to Becner's inequality2013
- Author(s)
  Ryotaro Tanaka, Kichi-Suke Saito, Naoto Komuro
- Journal Title
  
  J. Math. Inequal.
  
  Volume: ---
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] How to calculate geometric constants of Banach apaces2013
- Author(s)
  Kichi-Suke Saito
- Journal Title
  
  Proceedings of the 7th International Conference on Nonlinear Analysis and Convex Analysis II
  
  Pages: 193-203
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] A Dunkl-Williams inequality and the generalized operator version2012
- Author(s)
  K-S. Saito
- Journal Title
  
  International Series of Numerical Mathematics
  
  Volume: 161 Pages: 137-148
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] A Dunkl-Williams inequality and the generalized operator version2012
- Author(s)
  Kichi-Suke Saito and Masaru Tominaga
- Journal Title
  
  International Series of Neumerical Mathematics
  
  Volume: 161 Pages: 137-148
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Every n-dimensional normed space is the space R n endowed with a normal norm2012
- Author(s)
  Ryotaro Tanaka and Kichi-Suke Saito
- Journal Title
  
  J. Inequal. Math
  
  Volume: 284 Pages: 5-5
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Every n-dimensional normed space is the space R^n endowed with a normal norm2012
- Author(s)
  Ryotaro Tanaka, Kichi-Suke Saito
- Journal Title
  
  J. Inequal. Math.
  
  Volume: 2012
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] A Dunkl-Williams inequality and the generalized operator version2012
- Author(s)
  Kichi-Suke Saito and Masaru Tominaga
- Journal Title
  
  International Series of Newmerical Mathematics
  
  Volume: 161 Pages: 137-148
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] The Dunkl-Williams constant of symmetric octagonal norms on R^22012
- Author(s)
  Hiroyoshi Mizuguchi and Kichi-Suke Saito
- Journal Title
  
  Nihonkai Math. J
  
  Volume: vol.23 Pages: 93-113
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540178
[Journal Article] The Dunkl-Williams constant of symetric octagonal norms on R^22012
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito, Ryotaro Tanaka
- Journal Title
  
  Nihonkai Math. J.
  
  Volume: 23 Pages: 93-113
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] How to calculate geometric constants of Banach spaces2012
- Author(s)
  Kichi-Suke Saito
- Journal Title
  
  Procedings of NACA2011
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] The Dunkl-Williams constant of symetric octagonal norms on R^22012
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito and Ryotaro Tanaka
- Journal Title
  
  Nihonkai Math. J
  
  Volume: 23, No.2 Pages: 93-113
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Kolmogorov's factorization theorem for von Neumann algebras2012
- Author(s)
  K. Nakade, T. OHWADAand K.-S. SAITO
- Journal Title
  
  J. Math. Anal. Appl
  
  Volume: Vol. 401 Pages: 289-292
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] The monotonicity of absolute normalized norms on C^n2011
- Author(s)
  K.Mitani, K.-S.Saito, N.Komura
- Journal Title
  
  Nihonkai Math.J
  
  Volume: 22 Pages: 91-102
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Extremal structure of the set of absolute normalized norms on R^2 and the James constant2011
- Author(s)
  Naoto Komuro, Kichi-Suke Saito and Ken-ichi Mitani
- Journal Title
  
  Applied Math. Computation
  
  Volume: 217 Pages: 10035-10048
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Extremal structure of the set of absolute normalized norms on R^2 and the James constant2011
- Author(s)
  N.Komura, K.-S.Saito, K.Mitani
- Journal Title
  
  Applied Math. Computation
  
  Volume: 217 Pages: 10035-10048
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Schatten p-norm inequalities related to an extended operator parallelogram law2011
- Author(s)
  M. S. MOSLEHIAN, M. TOMINAGA and K.-S. SAITO
- Journal Title
  
  Linear Algebras and Applications
  
  Volume: Vol. 435 Pages: 823-829
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Another aspect of triangle inequality2011
- Author(s)
  K.-S.Saito, R.An, H.Mizuguchi, K.Mitani
- Journal Title
  
  ISRN Math.Anal.
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] On sharp triangle inequalities in Banach spaces and its application2011
- Author(s)
  Kichi-Suke Saito and Ken-Ichi Mitani
- Journal Title
  
  Banach and Function Spaces III
  
  Pages: 295-304
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On sharp triangle inequalities in Banach spaces and its applications2011
- Author(s)
  K.-S.Saito, K.Mitani
- Journal Title
  
  Banach and Function Spaces III
  
  Volume: 3 Pages: 295-304
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Schatten p-norm inequalities related to an extended operator parallelogram law2011
- Author(s)
  M.S.Moslehian, M.Tominaga, K.-S.Saito
- Journal Title
  
  Linear Algebras and Applications
  
  Volume: 435 Pages: 823-829
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Another aspect of triangle inequality2011
- Author(s)
  Kichi-Suke Saito, Runling An, Hiroyoshi Mizuguchi and Ken-ichi Mitani
- Journal Title
  
  ISRN Mathematical Analysis
  
  Volume: Volume 2011 Pages: 5-5
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Another aspect of triangle inequality2011
- Author(s)
  Kichi-Suke Saito
- Journal Title
  
  ISRN Mathematical Analysis
  
  Volume: 2011
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Another aspect of triangle inequality2011
- Author(s)
  Kichi-Suke Saito
- Journal Title
  
  ISRN Mathematical Analysis
  
  Volume: 2011
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Schatten p-norm inequalities related to an extended operator parallelogram law2011
- Author(s)
  M. S. Moslehiam, M. Tominaga, K.-S. Saito
- Journal Title
  
  Linear Algebras and Applications
  
  Volume: 435 Pages: 823-829
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540216
[Journal Article] The monotonicity of absolute normalized norms on C^n2011
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito and Naoto Komuro
- Journal Title
  
  Nihonkai Math. J
  
  Volume: 22, no. 2 Pages: 91-102
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Extremal structure of the set of absolute normalized norms on R^2 and the James constant2011
- Author(s)
  N. Komuro, K. S. Saito, K.-I. Mitani
- Journal Title
  
  Applied Math. Computation
  
  Volume: 217 Pages: 10035-10048
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540216
[Journal Article] Some geometrical constants of absolute normalized norms on $￥Bbb R^2$2011
- Author(s)
  Hiroyasu Mizuguchi and Kichi-Suke Saito
- Journal Title
  
  Ann. Funct. Anal
  
  Volume: vol.2 Pages: 22-33
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540178
[Journal Article] Schatten p-norm inequalies related to an extended operator parallelogram law2011
- Author(s)
  Mohammad S. Moslehiam, Masaru Tominaga and Kichi-Suke Saito
- Journal Title
  
  Linear Algebras and Applications
  
  Volume: 435 Pages: 823-829
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Extremal structure of absolute normalized norms on R^2 III2011
- Author(s)
  Naoto Komuro, Kichi-Suke Saito and Ken-ichi Mitani
- Journal Title
  
  Banach and Function Spaces III
  
  Pages: 271-279
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Some geometrical constants of absolute normalized norms on R^22011
- Author(s)
  Hiroyasu Mizuguchi and Kichi-Suke Saito
- Journal Title
  
  Ann. Funct. Anal
  
  Volume: 2, no.2 Pages: 22-33
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Some geometrical constants of absolute normalized norms on R^22011
- Author(s)
  H.Mizuguchi, K.-S.Saito
- Journal Title
  
  Ann.Funct.Anal.
  
  Volume: 2 Pages: 22-33
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Schatten p-norm inequalies related to an extended operator parallelogram law2011
- Author(s)
  Mohammad S. Moslehiam, Masaru Tominaga, Kichi-Suke Saito
- Journal Title
  
  Linear Algebras and Applications Vol.455
  
  Pages: 823-829
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Uniform non-[e11]^n_1-ness of φ-direct sums of Banach spaces2010
- Author(s)
  M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  Journal of Nonlinear and Convex Analysis 11
  
  Pages: 13-33
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] 三角不等式についての最近の結果とその応用2010
- Author(s)
  斎藤吉助
- Journal Title
  
  国際数理科学会報
  
  Volume: 69 Pages: 1-13
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] The Dunkl-Williams type inequality for ansolute value operators2010
- Author(s)
  Kichi -Suke Saito
- Journal Title
  
  Linear Alg.Appl. 432
  
  Pages: 3258-3264
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Uniform non-[ell]^n_1-ness of Ψ-direct sums of Banach spaces2010
- Author(s)
  M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  J.Nonlinear Convex Anal.
  
  Volume: 11 Pages: 13-33
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] Sharp mean triangle inequality2010
- Author(s)
  藤井正敏, 加藤幹雄, 斎藤吉助, 田村高幸
- Journal Title
  
  Math.Inequal.Appl. 13
  
  Pages: 743-752
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] Uniform non-1^n-ness of ψ-directsums of Banach spaces X+_ψY, J. Nonlinear Anal.2010
- Author(s)
  Mikio Kato, Kichi-Suke Saito, Takayuki Tamura
- Journal Title
  
  Convex Anal. Vol.11, No.1
  
  Pages: 13-33
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Extremal structure of the set of absolute normalized norms on R^2 and the von Neumann-Jordan constant2010
- Author(s)
  N.Komuro, K.-S.Saito, K.Mitani
- Journal Title
  
  J.Math.Anal.Appl.
  
  Volume: 370 Pages: 101-106
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Sharp triangle inequalities for Banach spaces II2010
- Author(s)
  Ken-Ichi Mitani, Kichi-Suke Saito
- Journal Title
  
  J. Inequal. Appl. Vol.2010 Article ID 323609
  
  Pages: 17-17
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] The Dunkl-Wilhams type inequality for absolute value operators2010
- Author(s)
  Kichi-Suke Saito
- Journal Title
  
  Linear Alg.Appl.
  
  Volume: 432 Pages: 3258-3264
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] A note on Clarkson's inequality in the real case2010
- Author(s)
  H.Mizuguchi, K.-S.Saito
- Journal Title
  
  J.Math.Inequal.
  
  Volume: 4 Pages: 129-132
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] The Dunkl-Williams type inequality for absolute value operators2010
- Author(s)
  Kichi-Suke Saito, Masaru Tominaga
- Journal Title
  
  Linear Alg. Appl. Vol.432
  
  Pages: 3258-3264
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Uniform non-l^n_1-ness of ψ-direct sums of Banach spaces2010
- Author(s)
  加藤幹雄, 斎藤吉助, 田村高幸
- Journal Title
  
  J.Nonlinear Convex Anal. 11
  
  Pages: 13-33
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] Sharp triangle inequalities for Banach spaces II2010
- Author(s)
  K.-I.Mitani, K.-S.Saito
- Journal Title
  
  J.Inequal.Appl.
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] 作用素に対するDunkl-Williams型不等式について2010
- Author(s)
  斎藤吉助
- Journal Title
  
  京都大学数理解析研究所講究録
  
  Volume: 1678 Pages: 47-54
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] The Dunkl-Williams type inequality for absolute value operator2010
- Author(s)
  K.-S.Saito, M.Tominaga
- Journal Title
  
  Linear Alg.Appl.
  
  Volume: 432 Pages: 3258-3264
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Uniform non-l_1 ^n-ness of ψ-direct sums of Banach spaces X+ψY2010
- Author(s)
  M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  J.Nonlinear Analysis and Convex Analysis
  
  Volume: 11 Pages: 13-33
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Sharp mean triangle inequality2010
- Author(s)
  M.Fujii, M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  Math.Inequal.Appl.
  
  Volume: 13 Pages: 743-752
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] Sharp mean triangle inequality2010
- Author(s)
  Masatoshi Fujii, Mikio Kato, Kichi-Suke Saito, Takayuki Tamura
- Journal Title
  
  Math. Inequal. Appl. Vol.13
  
  Pages: 743-752
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Sharp mean triangle inequality2010
- Author(s)
  M.Fujii, M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  Math.Inequal.Appl.
  
  Volume: 13 Pages: 743-752
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Extremal structure of the set of absolute normalized norms on R^2 and the von Neumann-Jordan constant2010
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ken-ichi Mitani
- Journal Title
  
  J.Math.Anal.Appl. Vol.370
  
  Pages: 101-106
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Dual of two dimensional Lorentz sequence spaces2009
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito
- Journal Title
  
  Nonlinear Analysis Vol.71
  
  Pages: 5238-5247
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] The new geometrical constant of Banach spaces and its applications2009
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito
- Journal Title
  
  Commentationes Mathematycznego Vol.49, No.1
  
  Pages: 3-13
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Dual of two dimensional Lorentz sequence spaces2009
- Author(s)
  K.-I.Mitani, K.-S.Saito
- Journal Title
  
  Nonlinear Anal. 71
  
  Pages: 5238-5247
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] On sharp triangle inequalities in Banach spaces and their application2009
- Author(s)
  K.-S.Saito, K.-I.Mitani
- Journal Title
  
  In : "Banach and Function Spaces III", (Proceedings of the Third International Symposium on Banach and Function Spaces 2009, Kitakyushu, Japan, Yokohama Publishers)(eds. M.Kato, L.Maligranda and T. Suzuki) in print.
  
  Pages: 295-304
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] On the calculation of the James constant of Lorenrz sequence spaces2008
- Author(s)
  K-I. Mitarsi, K-S. Saito, T. Suzuki
- Journal Title
  
  Journal of Mathematical Analysis and Applications 343
  
  Pages: 310-314
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] Sharp triangle inequalityの一般化について2008
- Author(s)
  田村高幸, 藤井正敏, 加藤幹雄, 斎藤吉助
- Journal Title
  
  京都大学数理解析研究所講究録 1615
  
  Pages: 75-79
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] Certain invariant subspace structure of L^2(T^2)II2008
- Author(s)
  A. Hasegawa, G. Ji, T. Ohwada, K. -S. Saito
- Journal Title
  
  Hokkaido Mathemat ical Journal 37
  
  Pages: 493-505
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] The new geometrical constant and 51-direct sums of Banach spaces2008
- Author(s)
  Ken-ichi, Mitani, Kichi-Suke, Saito
- Journal Title
  
  Banach and Function spaces II
  
  Pages: 385-391
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] The new geome trical constant and $\psi$-direct sums of Banach spaces2008
- Author(s)
  K. -I. Mitani, K. -S. Saito
- Journal Title
  
  Banach and Function on spaces 2
  
  Pages: 385-391
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] On the calculation of the James constant of Lorenrz sequence spaces2008
- Author(s)
  K-I.Mitani, K-S.Saito, T.Suzuki
- Journal Title
  
  Journal of Mathematical Analysis and Applications 343
  
  Pages: 310-314
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] A new geometrical constant and φ-direct sums of Banach spaces2008
- Author(s)
  K-I.Mitani, K-S.Saito
- Journal Title
  
  Proceedings of the International Symposium on Banach and Function Spaces II
  
  Pages: 385-391
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] A new geometrical constant and ψ-direct sums of Banach spaces2008
- Author(s)
  K-I. Mitani, K-S. Saito
- Journal Title
  
  Proceedings of the Second International Symposium on Banach and Function Spaces 2006
  
  Pages: 385-391
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] On the calculation of the James constant of Lorenrz sequence spaces2008
- Author(s)
  K. -I. Mitani, K. -S. Saito, T. Suzuki
- Journal Title
  
  Journal of Mathematical Analys is and Appl ications 343
  
  Pages: 310-314
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] On the calculation of the James constant of Lorentz sequence spaces2008
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito, Tomonari Suzuki
- Journal Title
  
  J.Math.Anal.Appl. Vol.343
  
  Pages: 310-314
- NAID
  120002441074
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] On the calculation of the James constant of Lorenrz sequence spaces2008
- Author(s)
  K.-I. Mitani, K.-S. Saito and T. Su zuki
- Journal Title
  
  Journal of Mathematical Analysis and Applications 343
  
  Pages: 310-314
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] Certain invariant subspace stru cture of L^2(T^2)II2008
- Author(s)
  Hasegawa, G. Ji, T. Ohwada and K.-S. Saito
- Journal Title
  
  Hokkaido Mathemat ical Journal 37
  
  Pages: 493-505
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] Sharp triangle inequality and its reverse in Banach spaces2007
- Author(s)
  M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  Mathematical Inequalities & Applications 10
  
  Pages: 451-460
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] Sharp triangle inequality and its reverse in Banach spaces2007
- Author(s)
  M. Kato, K-S. Saito, T. Tamura
- Journal Title
  
  Mathematical Inequalities&Applications 10
  
  Pages: 451-460
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] Refinement of the triangle ineqaulity and its application2007
- Author(s)
  Kichi-Suke, Saito
- Journal Title
  
  RIMS Kokyuroku(Kyoto University) 1570
  
  Pages: 61-68
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] 4-direct sums of Banach spaces and thier applications2007
- Author(s)
  Ken-ichi, Mitani, Kichi-Suke, Saito
- Journal Title
  
  Nonlinear Analysis and Convex Analysis
  
  Pages: 367-376
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] 三角不等式の精密化とその応用2007
- Author(s)
  斉藤吉助, 三谷健一, 加藤幹雄, 田村高幸
- Journal Title
  
  京都大学数理解析研究所講究録 1570
  
  Pages: 61-68
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] Sharp and reverse triangular inequalities for Banach spaces2007
- Author(s)
  Mikio, Kato, Kichi-Suke, Saito, Takayuki, Tamura
- Journal Title
  
  Math. Inequal. Appl 10
  
  Pages: 451-460
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] A note on geometrical properties of Banach spaces using ψ-direct sums2007
- Author(s)
  K.Mitani, K-S.Saito
- Journal Title
  
  Journal of Mathematical Analysis and Applications 327
  
  Pages: 898-907
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] 三角不等式の精密化とその応用2007
- Author(s)
  斎藤吉助, 三谷健一, 加藤幹雄, 田村高幸
- Journal Title
  
  京都大学数理解析研究所講究録 1570
  
  Pages: 61-68
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] A characterization of B-convexity and Jconvexity of Banach spaces2007
- Author(s)
  Ken-ichi, Mitani, Kichi-Suke, Saito
- Journal Title
  
  Banach Journal of Mathematical Analysis 1
  
  Pages: 33-42
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] On sharp triangle inequalities in Banach spaces2007
- Author(s)
  K-I. Mitani, K-S. Saito, M. Kato, T. Tamura
- Journal Title
  
  Journal of Mathematical Analysis and Anulications 336
  
  Pages: 1178-1186
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] Sharp triangular inequalities for Banach spaces2007
- Author(s)
  Ken-ichi, Mitani, Kichi-Suke, saito, Mikio, Kato, Takayuki, Tamura
- Journal Title
  
  J. Math. Anal. Math 336
  
  Pages: 1178-1186
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] A note on geometrical properties of Banach spaces using $\psi$-dicect sums2007
- Author(s)
  K. Mitani and K-S. Saito
- Journal Title
  
  Journal of Mathematical Analysis and Applications 327
  
  Pages: 898-907
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] A note on geometrical properties of Banach spaces using $\psi$-direct sums2007
- Author(s)
  K. Mitani and K-S. Saito
- Journal Title
  
  Journal of Mathematical Analysis and Applications 327
  
  Pages: 898-907
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] On sharp triangle inequalities in Banach spaces2007
- Author(s)
  K-I.Mitani, K-S.Saito, M.Kato, T.Tamura
- Journal Title
  
  Journal of Mathematical Analysis and Applications 336
  
  Pages: 1178-1186
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] On generalized t-spaces2007
- Author(s)
  Ken-ichi, Mitani, Kichi-Suke, Saito
- Journal Title
  
  Hiroshima Math. J 37
  
  Pages: 1-12
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] A note on geometrical properties of Banach spaces using tf-direct sums2007
- Author(s)
  Ken-ichi, Mitani, Kichi-Suke, Saito
- Journal Title
  
  J. Math. Anal. Appl 327
  
  Pages: 898-907
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] Uniform non-1^n_1-ness of direct sums of Banach Spaces2006
- Author(s)
  M. Kato, K.-S. Saito, T. Tamura
- Journal Title
  
  京都大学数理解析研究所講究録 1520
  
  Pages: 104-108
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] A note on maximality of analytic crossed products2006
- Author(s)
  T.Ohwada, G.Ji, A.Hasegawa, K-S.Saito
- Journal Title
  
  Journal of Mathematical Analysis and Applications 315
  
  Pages: 216-224
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] A note on maximality of analytic crossed products2006
- Author(s)
  Tomoyoshi, Ohwada, Guoxing, Ji, Ataishi, Hasegawa, Kichi-Suke, Saito
- Journal Title
  
  J. Math. Anal. Appl 315
  
  Pages: 216-224
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] Commutants of certain analytic operator algebras2006
- Author(s)
  G.Ji, T.Ohwada, K-S.Saito
- Journal Title
  
  Proc. Amer. Math. Soc. 134
  
  Pages: 2975-2982
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] A note on maximality of analytic crossed products2006
- Author(s)
  T. Ohwada, G. Ji, A. Hasegawa and K.-S. Saito
- Journal Title
  
  Journal of Mathematical Analysis and Applications 315
  
  Pages: 216-224
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] Uniform non-l^n_l-ness of direct sums of Banach Spaces2006
- Author(s)
  M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  京都大学数理解析研究所講究録 1520
  
  Pages: 104-108
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] A note on maximality of analytic crossed products2006
- Author(s)
  Tomoyoshi Ohwada, Guoxing Ji, Atsushi Hasegawa, Kichi-Suke Saito
- Journal Title
  
  J.Math.Anal.Appl. 315
  
  Pages: 216-224
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540142
[Journal Article] Commutants of certain analytic operator algebras2006
- Author(s)
  G. Ji, T. Ohwada and K.-S. Saito
- Journal Title
  
  Proceedings of the American Mathematical Society 134
  
  Pages: 2975-2982
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] Commutants of certain analytic operator algebras2006
- Author(s)
  Guoxing, Ji, Tomoyoshi, Ohwada, Kichi-Suke, Saito
- Journal Title
  
  Proc. Amer. Math. Soc 134
  
  Pages: 2975-2982
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] On the calculation of the James constant of Lorenrz sequence spaces2006
- Author(s)
  Ken-ichi, Mitani, Kichi-Suke, Saito, Tomonari, Suzuki
- Journal Title
  
  J. Math. Anal. Appl 343
  
  Pages: 310-314
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] Smoothness of ψ-direct sums of Banach spaces2005
- Author(s)
  K.Mitani, S.Oshiro, K.-S.Saito
- Journal Title
  
  Mathematical Inequalities and Applications 8
  
  Pages: 147-157
- Data Source
  KAKENHI-PROJECT-16540163
[Journal Article] Uniform non-l^n_1-ness of ψ-direct sums of Banach spaces X【symmetry】_ΨY2005
- Author(s)
  T.Tamura, M.Kato, K.-S.Saito
- Journal Title
  
  京都大学数理解析研究所講究録 1452
  
  Pages: 227-232
- Data Source
  KAKENHI-PROJECT-16540163
[Journal Article] Smoothness of ψ-direct sums of Banach spaces2005
- Author(s)
  Ken-ichi Mitani, S.Oshiro, Kichi-Suke Saito
- Journal Title
  
  Mathematical Inequalities and Applications 8
  
  Pages: 147-157
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540163
[Journal Article] Smoothness of ψ-direct sums of Banach spaces2005
- Author(s)
  K.Mitani, S.Oshiro, K.-S.Saito
- Journal Title
  
  Math.Inequal.Appl. 8
  
  Pages: 147-157
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540142
[Journal Article] Smoothness of -direct sums of Banach spaces2005
- Author(s)
  Ken-ich Mitani, S.Oshiro, Kichi-Suke Saito
- Journal Title
  
  Mathematical Inequalities and Applications 8
  
  Pages: 147-157
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540163
[Journal Article] On wandering vector multipliers for unitary groups2005
- Author(s)
  G.Ji, K.-S.Saito
- Journal Title
  
  Proc.Amer.Math.Soc. 133
  
  Pages: 3263-3269
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540142
[Journal Article] Uniform non-l^n_1-ness of ψ-direct sums of Banach spaces X【symmetry】_ψ Y2005
- Author(s)
  Takayuki Tamura, Mikio Kato, Kichi-Suke Saito
- Journal Title
  
  RIMS Kokyuroku (Kyoto University) 1452
  
  Pages: 227-232
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540163
[Journal Article] Uniform non l^n_1-ness of -direct sums of Banach spaces X Y2005
- Author(s)
  Takayuki Tamura, Mikio Kato, Kichi-Suke Saito
- Journal Title
  
  京都大学数理解析研究所講究録 1452
  
  Pages: 227-232
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540163
[Journal Article] Uniform non-squareness of ψ-direct sums of Banach spaces X 【symmetry】_ψ Y2004
- Author(s)
  Mikio Kato, Kichi-Suke Saito, Takayuki Tamura
- Journal Title
  
  Mathematical Inequalities and Applications 7
  
  Pages: 429-437
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540163
[Journal Article] Absolute norms on C^n and their geometrical structure2004
- Author(s)
  Saito, Kichi-Suke
- Journal Title
  
  Banach and Function Spaces
  
  Pages: 121-144
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540142
[Journal Article] Absolute norms on C^n and their geometrical structure2004
- Author(s)
  Kichi-Suke Saito
- Journal Title
  
  Banach and Function Spaces
  
  Pages: 121-144
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540142
[Journal Article] Uniform non-squareness of psi-direct sums of Banach spaces X Y2004
- Author(s)
  Mikio Kato, Kichi-Suke Saito, Takayuki Tamura
- Journal Title
  
  Mathematical Inequalities and Applications 7
  
  Pages: 429-437
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540163
[Journal Article] Uniform non-squareness of Ψ-direct sums of Banach spaces X【symmetry】_ΨY2004
- Author(s)
  M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  Mathematical Inequalities and Applications 7
  
  Pages: 429-437
- Data Source
  KAKENHI-PROJECT-16540163
[Journal Article] Uniform non-squareness of ψ-direct sums of Banach spaces X_ψY2004
- Author(s)
  Mikio Kato, Kichi-Suke Saito, Takayuki Tamura
- Journal Title
  
  Mathematical Inequalities and Applications 7
  
  Pages: 429-437
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540142
[Journal Article] The James constant and von Neumann-Jordan constant of absolute norms on R2004
- Author(s)
  K.Mitani, K.-S.Saito
- Journal Title
  
  Banach and Function Spaces
  
  Pages: 315-321
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540142
[Journal Article] Absolute norms on C^n and thier geometrical structure2004
- Author(s)
  Saito, Kichi-Suke
- Journal Title
  
  Banach and Function Spaces
  
  Pages: 121-144
- Data Source
  KAKENHI-PROJECT-16540142
[Journal Article] 作用素に対するDunkl-Williams型不等式について
- Author(s)
  斎藤吉助
- Journal Title
  
  数理研講究録 (掲載決定)
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Extremal structure of the set of absolute normalized norms on R^2 and the James constant
- Author(s)
  Naoto Komuro, Kichi-Suke Saito, Ken-ichi Mitani
- Journal Title
  
  Applied Math. Computation (掲載決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] On sharp triangle inequalities in Banach spaces
- Author(s)
  K.Mitani, K.-S.Saito, M.Kato, T.Tamura
- Journal Title
  
  Journal of Mathematical Analysis and Applications 掲載予定
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] Refined generalizations of the triangle inequality on Banach spaces
- Author(s)
  S.Takahasi, J.M.Rassias, S.Saitoh, Y.Takahashi
- Journal Title
  
  Mathematical Inequalities & Applications (掲載決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] A Dunkl-Williams inequality and the generalized operator version
- Author(s)
  Kichi-Suke Saito
- Journal Title
  
  Proceedings of Inequalities and Application 10
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Sharp triangle inequalities for Banach spaces II
- Author(s)
  K.I.Mitani, K.-S.Saito
- Journal Title
  
  Journal of Inequalities and Applications (掲載決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] Refined generalizations of the triangle inequality on Banach spaces
- Author(s)
  S.Takahasi, J.M.Rassias, S.Saitoh, Y.Takahashi
- Journal Title
  
  Mathematical Inequalities and Applications 掲載予定
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] On sharp triangle inequalities in Banach spaces and its application
- Author(s)
  K.-S.Saito, K.-I.Mitani
- Journal Title
  
  Banach and Function Spaces III
  
  Volume: (掲載決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] Refined generalizations of the triangle inequality on Banach spaces
- Author(s)
  S. Takahasi, J. M. Rassias, S. Saitoh, Y. Takahashi
- Journal Title
  
  Mathematical Inequalities&Applications (掲載決定)
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] Certain invariant subspace structure of L.3-(T1) II
- Author(s)
  Atsushi, Hasegawa, Guoxing, Ji, Tomoyoshi, Ohwada, Kichi-Suke, Saito
- Journal Title
  
  to appear in Hokkaido Math. J
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] Schatten p-norm inequalies related to an extended operator parallelogram law
- Author(s)
  M.S.Moslehiam, M.Tominaga, K.-S.Saito
- Journal Title
  
  Linear Algebras and Applications
  
  Volume: (掲載決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] On sharp triangle inequalities in Banach spaces and its application
- Author(s)
  Kichi-Suke Saito
- Journal Title
  
  Proc.Banach and Function space III
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540158
[Journal Article] Commutants of certain analytic operator algebras
- Author(s)
  Guoxing Ji, Tomoyoshi Ohwada, Kichi-Suke Saito
- Journal Title
  
  Proc.Amer.Math.Soc. (in pressed)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540142
[Journal Article] Sharp triangle inequality and its reverse in Banach spaces
- Author(s)
  M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  Mathematical Inequalities and Applications 掲載予定
- Data Source
  KAKENHI-PROJECT-18540185
[Journal Article] Refined generalizations of the triangle inequality on Banach spaces
- Author(s)
  Sin-ei, Takahasi, J. M., Rassias, Saburo, Saitoh, Yasuji, Takahashi
- Journal Title
  
  to appear in Math. Inequal. Appl
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Journal Article] Another approach to characterizations of generalized triangle inequalities in normed spaces
- Author(s)
  Tamotsu Izumida, Ken-Ichi Mitani and Kichi-Suke Saito
- Journal Title
  
  CentralEuropean Jornal of Mathematics
  
  Volume: (掲載決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Dual of two dimensional Lorentz sequence spaces
- Author(s)
  K. -I. Mitani, K. -S. Saito
- Journal Title
  
  Nonlinear Analysis, Series A : Theory, Methods & Applications 掲載決定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] Extremal structure of absolute normalized norms on R^2 III
- Author(s)
  N.Komuro, K.-S.Saito, K.-I.Mitani
- Journal Title
  
  Banach and Function Spaces III
  
  Volume: (掲載決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] Sharp mean triangle inequality
- Author(s)
  M.Fujii, M.Kato, K.-S.Saito, T.Tamura
- Journal Title
  
  Mathematical Inequalities and Applications (掲載決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Journal Article] A note on Clarkson's inequality in the real case
- Author(s)
  H.Mizuguchi, K.-S.Saito
- Journal Title
  
  Journal of Mathematical Inequalities (掲載決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] ラドン空間の構造についての一考察2020
- Author(s)
  斎藤吉助、小室直人、田中遼太郎
- Organizer
  日本数学会年会
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] Symmetric points for Birkhoff orthogonality II2019
- Author(s)
  田中遼太郎、　小室直人、　斎藤吉助
- Organizer
  日本数学会年会
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] Day-Jameskuukannにおける幾何学的定数について2019
- Author(s)
  三谷健一、斎藤吉助
- Organizer
  実解析シンポジウム２０１９
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] Symmetric points for Birkhoff orthogonality I2019
- Author(s)
  田中遼太郎、　小室直人、　斎藤吉助
- Organizer
  日本数学会年会
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] フォン・ノイマン環の全双対におけるBirkhoff直交性の左対称点について2019
- Author(s)
  田中遼太郎、小室直人、斎藤吉助
- Organizer
  実解析シンポジウム２０１９
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] Symmetric points for Birkhoff orthogonality II2019
- Author(s)
  田中亮太朗, 小室直人, 斎藤吉助
- Organizer
  日本数学会年会
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] Symmetric points for Birkhoff orthogonality I2019
- Author(s)
  田中亮太朗, 小室直人, 斎藤吉助
- Organizer
  日本数学会年会
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] Von Neumann-Jordan constant of generalized Banas-Fraczek spaces2018
- Author(s)
  三谷健一, 斎藤吉助,高橋泰嗣
- Organizer
  京都大学数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] On the symmetry of Banach soaces2018
- Author(s)
  Kichi-Suke Saito, Naoto Komuro, Ryotaro Tanaka
- Organizer
  Nao-Asia 2018
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] Von Neumann-Jordan constant of generalized Banach-Fraczek spaces2018
- Author(s)
  三谷健一、斎藤吉助、高橋泰嗣
- Organizer
  京都大学数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] 精密化された三角不等式の等号成立条件について2018
- Author(s)
  大和田智義、　斎藤吉助、　三谷健一
- Organizer
  数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] Geometrical constants of Day-Lames spaces2018
- Author(s)
  三谷健一、　斎藤吉助
- Organizer
  数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] Which dimensional Banach spaces are complicated two or three more?2018
- Author(s)
  斎藤吉助
- Organizer
  京都大学数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] On the symmetry of Birkhoff orthogonality in Banach spaces2018
- Author(s)
  Kichi-Suke Saito, Naoto Komuro, Ryotaro Tanaka
- Organizer
  NAO-Asia 2018
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] Geometrical constants of Day-James spaces2018
- Author(s)
  三谷健一, 斎藤吉助,
- Organizer
  数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] 精密化された三角不等式の等号成立条件について2018
- Author(s)
  大和田智義, 斎藤吉助, 三谷健一、
- Organizer
  数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] Which dimensional Banach spaes are complicated two or three more?2018
- Author(s)
  斎藤吉助
- Organizer
  京都大学数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] On the symmetry of Birkhoff orthogonality in Banach spaces2018
- Author(s)
  斎藤吉助、田中亮太朗、小室直人
- Organizer
  数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] On the symmetry of Birkhoff orthogonality in Banach spaces2018
- Author(s)
  斎藤吉助、　田中遼太郎、　小室直人
- Organizer
  数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] On the von Neumann-Jordan constant of generalized Banach-Fraczek spaces II2017
- Author(s)
  Ken-Ichi Mitani, Kichi-Suke Saito, Yasuji Takahashi
- Organizer
  NonlinearAnalysis and Convex Analysis 2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] ２次元ローレンツ空間のJames 定数についての最近の発展2017
- Author(s)
  斎藤吉助, 田中亮太朗, 三谷健一
- Organizer
  京都大学数理解析研究所研究集会
- Place of Presentation
  京都大学数理解析研究所(京都府・京都市)
- Year and Date
  2017-02-06
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] 回転不変ノルムによる幾何学的定数2017
- Author(s)
  冨澤佑季乃、三谷健一、斎藤吉助，田中亮太朗
- Organizer
  日本数学会年会
- Place of Presentation
  首都大学東京(東京都・八王子市)
- Year and Date
  2017-03-24
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] More on the class of Banach spaces with James constant root 22017
- Author(s)
  Kichi-Suke Saito, Naoto Komuro and Ryotaro Tanaka
- Organizer
  Nonlineia Analysis and Convex Analysis 2017
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] More on the class of Banach spaces with James constant2017
- Author(s)
  Kichi-Suke Saito, Naoto Komuro, and Ryotaro Tanaka
- Organizer
  NonlinearAnalysis and Convex Analysis 2017
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] von Neumann-Jordan constant of l_p-l_q spaces2017
- Author(s)
  三谷健一, 斎藤吉助,
- Organizer
  京都大学数理解析研究所研究集会
- Place of Presentation
  京都大学数理解析研究所(京都府・京都市)
- Year and Date
  2017-02-06
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] von Neumann-Jordan constant of [ell]_p-[ell]_q spaces2017
- Author(s)
  三谷健一、斎藤吉助、高橋泰嗣
- Organizer
  研究集会「関数空間の構造とその周辺」
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2017-02-06
- Data Source
  KAKENHI-PROJECT-26400131
[Presentation] On the structure of Banach spaces with James constant root 22017
- Author(s)
  斎藤吉助、小室直人、田中遼太朗
- Organizer
  京都大学数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] On the von Neumann-Jordan constant of generalized Banach-Fraczek spaces II2017
- Author(s)
  Ken-Ichi Mitani, Kichi-Suke Saito, and Yasuji Takahashi
- Organizer
  Nonlineia Analysis and Convex Analysis 2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05287
[Presentation] On the structure of Banach spaces with James constant √22017
- Author(s)
  斎藤吉助, 　小室直人, 　田中亮太朗
- Organizer
  京都大学数理解析研究所研究集会
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] 最良のJames 定数を持つバナッハ空間の特徴付けとそのLassak 問題への応用2017
- Author(s)
  田中亮太朗, 小室直人, 斎藤吉助
- Organizer
  京都大学数理解析研究所研究集会
- Place of Presentation
  京都大学数理解析研究所(京都府・京都市)
- Year and Date
  2017-02-06
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] More on the class of Banach spaces with James constant2017
- Author(s)
  Kichi-Suke Saito
- Organizer
  Nonlinear Analysis and Convex Analysis 2017
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400131
[Presentation] James定数の行列の表現とその応用2017
- Author(s)
  斎藤吉助，小室直人、田中亮太朗
- Organizer
  日本数学会年会
- Place of Presentation
  首都大学東京(東京都・八王子市)
- Year and Date
  2017-03-24
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] On the von Neumann-Jordan constant of l^p-l^q spaces2016
- Author(s)
  Ken-Ichi Mitani, Yasuji Takahashi, Kichi-Suke Saito
- Organizer
  Nao-Asia 2016
- Place of Presentation
  Toki Messe(新潟県・新潟市)
- Year and Date
  2016-08-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] On the von Neumann-Jordan constant of Banas-Fraaczek space2016
- Author(s)
  三谷健一、斎藤吉助、高橋泰嗣
- Organizer
  日本数学会秋期総合分科会
- Place of Presentation
  関西大学
- Year and Date
  2016-09-15
- Data Source
  KAKENHI-PROJECT-26400131
[Presentation] On the von Neumann-Jordan constant of Banas-Fraaczek space2016
- Author(s)
  三谷健一, 斎藤吉助, 高橋泰嗣
- Organizer
  日本数学会秋期分科会
- Place of Presentation
  関西大学(大阪府・吹田市）
- Year and Date
  2016-09-15
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] π/2-rotation invariant norms on R^2 and the James constant2016
- Author(s)
  Kichi-Suke Saito, Naoto Komuro, Ryotaro Tanaka
- Organizer
  Nao-Asia 2016
- Place of Presentation
  Toki Messe(新潟県・新潟市)
- Year and Date
  2016-08-01
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] 回転不変ノルムに対するJames 定数の双対性について2016
- Author(s)
  田中亮太朗、小室直人、斎藤吉助
- Organizer
  2016年日本数学会年会
- Place of Presentation
  筑波大学,　茨城県つくば市
- Year and Date
  2016-03-16
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] A characterization of two-dimensional normed spaces with James constant2016
- Author(s)
  Ryotaro Tanaka, Naoto Komuro, Kichi-Suke Saito
- Organizer
  Nao-Asia 2016
- Place of Presentation
  Toki Messe(新潟県・新潟市)
- Year and Date
  2016-08-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] Geometric constants of π/2-rotation invariant norms2016
- Author(s)
  Yukino Tomizawa, Ken-Ichi Mitani, Kichi-Suke Saito、Ryotaro Tanaka
- Organizer
  Nao-Asia 2016
- Place of Presentation
  Toki Messe(新潟県・新潟市)
- Year and Date
  2016-08-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] 回転不変ノルムに対するJames定数の双対性について2016
- Author(s)
  田中亮太朗、小室直人、斎藤吉助
- Organizer
  日本数学会年会
- Place of Presentation
  筑波大学、筑波
- Year and Date
  2016-03-16
- Data Source
  KAKENHI-PROJECT-26400131
[Presentation] Rotation invariant norms on R^2 and geometric constants2016
- Author(s)
  Kichi-Suke Saito, Naoto Komuro, Ryotaro Tanaka
- Organizer
  京都大学数理解析研究所研究集会
- Place of Presentation
  京都大学数理解析研究所(京都府・京都市)
- Year and Date
  2016-08-31
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] バナッハ空間の幾何学的定数と行列ノルムについて2016
- Author(s)
  斎藤吉助,小室直人、田中亮太朗
- Organizer
  京都大学数理解析研究所研究集会
- Place of Presentation
  京都大学数理解析研究所(京都府・京都市)
- Year and Date
  2016-11-09
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] π/2-rotation invariant norms on R^2 and the James constant2016
- Author(s)
  Kichi-Suke Saito, Naoto Komuro, Ryotaro Tanaka
- Organizer
  The fifth Asian conference on Nonlinear Analysis and Optimization
- Place of Presentation
  Toki Messe, Niigata, Japan
- Year and Date
  2016-08-01
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400131
[Presentation] James 定数√２とノルムの幾何構造との関係について2015
- Author(s)
  田中亮太郎、小室直人、斎藤吉助
- Organizer
  実解析学シンポジウム2015
- Place of Presentation
  東邦大学習志野キャンパス、千葉県習志野市
- Year and Date
  2015-10-23
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] On the von Neumann-Jordan constant for Bana´s-Fraczek space2015
- Author(s)
  Ken-Ichi Mitani, Yasuji Takahashi, Kichi-Suke Saito
- Organizer
  The Fifth International Symposium on Banach and Function Spaces 2015
- Place of Presentation
  九州工業大学工学部、福岡県北九州市
- Year and Date
  2015-09-02
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] Which Banach space has James constant √2 ?2015
- Author(s)
  Kichi-Suke Saito, Naoto Komuro, Ryotaro Tanaka
- Organizer
  The Fifth International Symposium on Banach and Function Spaces 2015
- Place of Presentation
  九州工業大学工学部、福岡県北九州市
- Year and Date
  2015-09-02
- Invited
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] The duality equality for James constant of Banach spaces2015
- Author(s)
  Ryotaro Tanaka, Kichi-Suke Saito
- Organizer
  The Fifth International Symposium on Banach and Function Spaces 2015
- Place of Presentation
  九州工業大学工学部、福岡県北九州市
- Year and Date
  2015-09-02
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] バナッハ空間の幾何学的構造についての最近の進展2015
- Author(s)
  斎藤吉助
- Organizer
  2015年日本数学会秋期総合分科会
- Place of Presentation
  京都産業大学　（京都府京都市）
- Year and Date
  2015-09-15
- Invited
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] バナッハ空間の幾何学的構造についての最近の進展2015
- Author(s)
  斎藤吉助
- Organizer
  2015年日本数学会秋期総合分科会
- Place of Presentation
  京都産業大学、京都府京都市
- Year and Date
  2015-09-13
- Invited
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] ノルム空間における幾何学的定数の上限値2015
- Author(s)
  水口洋康、斎藤吉助
- Organizer
  2015年日本数学会秋期総合分科会
- Place of Presentation
  京都産業大学,京都府京都市
- Year and Date
  2015-09-13
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] Recent development of James constant of two dimensional Lorentz sequence spaces2014
- Author(s)
  Kichi-Suke Saito, Ken-ichi Mitani and Ryotaro Tanaka
- Organizer
  RIMS 研究集会
- Place of Presentation
  京都大学
- Year and Date
  2014-01-08
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 2 次元 Lorentz 数列空間及びその双対空間の James 定数2014
- Author(s)
  Ken-ichi Mitani , Kichi-Suke Saito and Ryotaro Tanaka
- Organizer
  日本数学会年会
- Year and Date
  2014-03-18
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 有限次元ノルムのノルム構造について2013
- Author(s)
  田中亮太朗, 斎藤吉助
- Organizer
  日本数学会秋期分科会
- Place of Presentation
  愛媛大学
- Year and Date
  2013-09-24
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] ノルム空間におけるDunkl-Williams 定数の計算方法について2013
- Author(s)
  水口洋康、斎藤吉助、田中亮太朗
- Organizer
  日本数学会
- Place of Presentation
  京都大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] ノルム空間における Dunkl-Williams 定数の計算方法について2013
- Author(s)
  水口洋康, 斎藤吉助, 田中亮太朗
- Organizer
  日本数学会年会
- Place of Presentation
  京都大学
- Year and Date
  2013-03-21
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] James constant of two dimensional Lorentz sequence spaces2013
- Author(s)
  Kichi-Suke Saito
- Organizer
  ICNAO2013 The international Conference on Nonlinear Analysis and Optimazation
- Place of Presentation
  Takao, Taiwan
- Year and Date
  2013-12-21
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 三角不等式の一般化について2013
- Author(s)
  泉田保, 斎藤吉助, 三谷健一
- Organizer
  京都大学数理解析研究所研究集会
- Year and Date
  2013-11-07
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Beckner の不等式とそのBanach 空間への応用について2013
- Author(s)
  斎藤吉助, 田中亮太朗, 小室直人
- Organizer
  日本数学会年会
- Place of Presentation
  京都大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 有限次元ノルムの正規直交基底について2013
- Author(s)
  田中亮太朗, 斎藤吉助
- Organizer
  日本数学会秋期分科会
- Place of Presentation
  愛媛大学
- Year and Date
  2013-09-24
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Characterizatyions of geometrical properties of Banach spaces using [psi]-direct sums2013
- Author(s)
  K.-S. Saito
- Organizer
  8th International Conference on Nonlinear Analysis and Convex Analysis (NACA2013)
- Place of Presentation
  Hirosaki, Japan
- Invited
- Data Source
  KAKENHI-PROJECT-23540216
[Presentation] Convex properties of James and von Neumann-Jordan constant of absolute norms on R^22013
- Author(s)
  Naoto Komuro, Kichi-Suke Saito and Ken-Ichi Mitani
- Organizer
  The Eighth International Conference on Nonlinear Analysis and Convex Analysis (NACA2013)
- Place of Presentation
  Hirosaki, Japan
- Year and Date
  2013-08-04
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Beckner の不等式とその Banach 空間への応用について2013
- Author(s)
  斎藤吉助, 田中亮太朗, 小室直人
- Organizer
  日本数学会年会
- Place of Presentation
  京都大学
- Year and Date
  2013-03-21
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 有限次元ノルム空間の構造について2013
- Author(s)
  田中亮太朗, 斎藤吉助
- Organizer
  日本数学会年会
- Place of Presentation
  京都大学
- Year and Date
  2013-03-21
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 有限次元ノルム空間の構造について2013
- Author(s)
  田中亮太朗、　斎藤吉助
- Organizer
  日本数学会
- Place of Presentation
  京都大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Beckner の不等式の一般化について2013
- Author(s)
  田中亮太朗, 斎藤吉助
- Organizer
  京都大学数理解析研究所研究集会
- Year and Date
  2013-11-07
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Beckner's inequality and its generalizations2013
- Author(s)
  Ryotaro Tanaka and Kichi-Suke Saito
- Organizer
  The Eighth International Conference on Nonlinear Analysis and Convex Analysis (NACA2013)
- Place of Presentation
  Hirosaki, Japan
- Year and Date
  2013-08-04
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Characterizations of geometrical properties of Banach spaces using ψ -direct sums2013
- Author(s)
  Kichi-Suke Saito
- Organizer
  The Eighth International Conference on Nonlinear Analysis and Convex Analysis (NACA2013)
- Place of Presentation
  Hirosaki, Japan
- Year and Date
  2013-08-04
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Recent results of Banach space theory2013
- Author(s)
  Kichi-Suke Saito
- Organizer
  Seminar Talk
- Place of Presentation
  University of Iowa
- Year and Date
  2013-09-12
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Characterizations of geometrical properties of Banach spaces using [psi]-direct sums2013
- Author(s)
  K.-S. Saito
- Organizer
  The 8th Inter- national Conference on Nonlinear and Convex Analysis
- Place of Presentation
  Hirosaki, Japan
- Invited
- Data Source
  KAKENHI-PROJECT-23540216
[Presentation] von Neumann-Jordan定数の凸性について2012
- Author(s)
  斎藤吉助
- Organizer
  日本数学会
- Place of Presentation
  東京理科大学神楽坂キャンパス
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] von Neumann-Jordan 定数の凸性について2012
- Author(s)
  斎藤吉助, 小室直人, 三谷健一, 田中亮太朗
- Organizer
  日本数学会年会
- Place of Presentation
  東京理科大学神楽坂キャンパス
- Year and Date
  2012-03-29
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Beckner’s inequality and its application to Banach spaces2012
- Author(s)
  斎藤吉助, 田中亮太朗, 小室直人
- Organizer
  京都大学数理解析研究所研究集会
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] On the convex property of von Neumann-Jordan constant2012
- Author(s)
  Kichi-Suke Saito
- Organizer
  Colloquim of the Department of Mathematics(招待講演)
- Place of Presentation
  Universidad Complutense de Madrid
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] How to calculate James constant of Banach spaces2012
- Author(s)
  Kichi-Suke Saito
- Organizer
  The foruth Internatinal symposium on Banach and Function Spaces
- Place of Presentation
  九州工大
- Invited
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] On the convex property of von Neumann-Jordan constant2012
- Author(s)
  Kichi-Suke Saito
- Organizer
  Colloquium of the Department of Mathematics
- Place of Presentation
  Universidad Complutense de Madrid
- Year and Date
  2012-02-13
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] A structure of n-dimensional normed linear spaces2012
- Author(s)
  Ryotaro Tanaka　and Kichi-Suke Saito
- Organizer
  The foruth Internatinal symposium on Banach and Function Spaces
- Place of Presentation
  九州工大
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Beckner's inequality and its application to Banach spaces2012
- Author(s)
  斎藤吉助, 田中亮太朗, 小室直人
- Organizer
  京都大学数理解析研究所研究集会
- Year and Date
  2012-11-05
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 有限次元ノルム空間の構造と直交基底について2012
- Author(s)
  田中亮太朗、斎藤吉助
- Organizer
  実解析学シンポジウム2012
- Place of Presentation
  茨城大学理学部
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] The Dunkl-Williams constant of some Banach spaces2012
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito, Ryotaro Tanaka
- Organizer
  The foruth Internatinal symposium on Banach and Function Spaces
- Place of Presentation
  九州工大
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Several geometric constants of absolute normalized norm on R^22012
- Author(s)
  H.Mizuguchi, K.-S.Saito
- Organizer
  日本数学会年会
- Place of Presentation
  東京理科大学,東京都
- Year and Date
  2012-03-29
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] Several geometric constants of absolute normalized norm on R^22012
- Author(s)
  水口洋康, 斎藤吉助
- Organizer
  日本数学会年会
- Place of Presentation
  東京理科大学神楽坂キャンパス
- Year and Date
  2012-03-29
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] How to calculate James constant of Banach spaces?2012
- Author(s)
  K.-S. SAITO
- Organizer
  The foruth International symposium on Banach and Function Spaces
- Place of Presentation
  九州工業大学
- Year and Date
  2012-09-13
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] A Calculation of Dunkl-Williams constant of Banach spaces2012
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito and Ryotaro Tanaka
- Organizer
  京都大学数理解析研究所研究集会
- Year and Date
  2012-08-29
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] How to calculate James constant of Banach spaces2012
- Author(s)
  Kichi-Suke Saito
- Organizer
  The foruth Internatinal symposium on Banach and Function Spaces
- Place of Presentation
  九州工大
- Year and Date
  2012-09-13
- Invited
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] A structure of n-dimensional normed linear spaces2012
- Author(s)
  Ryotaro Tanaka and Kichi-Suke Saito
- Organizer
  The foruth Internatinal symposium on Banach and Function Spaces
- Place of Presentation
  九州工大
- Year and Date
  2012-09-13
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 有限次元ノルム空間の構造と直交基底について2012
- Author(s)
  田中亮太朗, ・斎藤吉助
- Organizer
  実解析学シンポジウム 2012
- Place of Presentation
  茨城大学理学部
- Year and Date
  2012-10-27
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] The Dunkl- Williams constant of some Banach spaces2012
- Author(s)
  Hiroyasu Mizuguchi, Kichi-Suke Saito and Ryotaro Tanaka
- Organizer
  The foruth Internatinal symposium on Banach and Function Spaces
- Place of Presentation
  九州工大
- Year and Date
  2012-09-13
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 三角不等式のゴ考察2011
- Author(s)
  斎藤吉助
- Organizer
  京都大学数理解析研究所研究集会
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2011-02-15
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] How to calculate the geometrical constants of Banach spaces2011
- Author(s)
  Kichi-Suke Saito
- Organizer
  The seventh International Conference on Nonlinear Analysis and Convex Anal-Ysis
- Place of Presentation
  Pukyong National University, Busan Korea(招待講演)
- Year and Date
  2011-08-03
- Data Source
  KAKENHI-PROJECT-22540178
[Presentation] Von Neumann-Jordan定数について2011
- Author(s)
  斎藤吉助
- Organizer
  作用素論・作用素環論研究集会
- Place of Presentation
  琉球大学、沖縄
- Data Source
  KAKENHI-PROJECT-23540216
[Presentation] On the James constant of absolute norms on R^22011
- Author(s)
  小室直人、斎藤吉助、三谷健一
- Organizer
  バナッハ空間論の研究とその周辺
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] Absoluteノルムの単調性とその応用2011
- Author(s)
  三谷健一, 小室直人, 斎藤吉助
- Organizer
  日本数学会年会
- Place of Presentation
  早稲田大学
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] How to caluculate the geometrical constants of Banach spaces2011
- Author(s)
  K.-S.Saito
- Organizer
  The 7-th International conference on Nonlinear Analysis and Convex Analysis
- Place of Presentation
  Pukyong National University, Busan, Korea(招待講演)
- Year and Date
  2011-08-03
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] Skewness and geometrical constants for Banach spaces2011
- Author(s)
  K.Mitani, K.-S.Saito, Y.Takahashi
- Organizer
  日本数学会秋期分科会
- Place of Presentation
  信州大学,長野県
- Year and Date
  2011-09-28
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] バナッハ空間の skew 定数について2011
- Author(s)
  三谷健一, 斎藤吉助, 高橋泰嗣
- Organizer
  京都大学数理解析研究所
- Year and Date
  2011-08-30
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Von Neumann Jordan定数について2011
- Author(s)
  K.-S.Saito
- Organizer
  作用素論・作用素環論研究集会
- Place of Presentation
  琉球大学,沖縄県
- Year and Date
  2011-11-05
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] How to calculate the geometrical constants of Banach spaces2011
- Author(s)
  Kichi-Suke Saito
- Organizer
  The seventh International Conference on Nonlinear Analysis and Convex Analysis
- Place of Presentation
  Pukyong National University, Busan Korea
- Year and Date
  2011-08-03
- Invited
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] On the James constant of extrem absolute norms on R^2 and their dualnorms2011
- Author(s)
  N.Komura, K.-S.Saito, K.Mitani
- Organizer
  The 7-th International conference on Nonlinear Analysis and Convex Analysis
- Place of Presentation
  Pukyong National University, Busan, Korea(招待講演)
- Year and Date
  2011-08-03
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] How to calculate thegeometrical constants of Banach spaces2011
- Author(s)
  Kichi-Suke Saito
- Organizer
  The seventh Internationa Conference on Nonlinear Analysis and Convex Analysis
- Place of Presentation
  Pukyong National University, Busan Korea
- Year and Date
  2011-08-03
- Data Source
  KAKENHI-PROJECT-22540178
[Presentation] How to calculate the geometrical constants of Banach spaces2011
- Author(s)
  Kichi-Suke Saito
- Organizer
  The 7-th International Conference on Nonlinear Analysis and Convex Analysis(招待講演)
- Place of Presentation
  Pukyong National University, Korea
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] On the James constant of absolute norms on R^22011
- Author(s)
  小室直人, 斎藤吉助, 三谷健一
- Organizer
  研究集会「バナッハ空間論の研究とその周辺」
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] バナッハ空間のskewnessについて2011
- Author(s)
  三谷健一、斎藤吉助
- Organizer
  バナッハ空間論の研究とその周辺
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] Skewness and geometrical constants for Banach spaces2011
- Author(s)
  三谷健一, 斎藤吉助, 高橋泰嗣
- Organizer
  日本数学会秋期総合分科会
- Place of Presentation
  信州大学、松本
- Data Source
  KAKENHI-PROJECT-23540216
[Presentation] On the James constant of extrem absolute norms on R^2 and their dual norms2011
- Author(s)
  Naoto Komuro, Kichi-Suke Saito and Ken-Ichi Mitani
- Organizer
  The seventh International Conference on Nonlinear Analysis and Convex Analysis
- Place of Presentation
  Pukyong National University, Busan Korea
- Year and Date
  2011-08-03
- Invited
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] How to calculate the geometrical constants of Banach spaces2011
- Author(s)
  Kichi-Suke Saito
- Organizer
  The seventh International Conference on Nonlinear Analysis and Convex Analysis(招待講演)
- Place of Presentation
  Pukyong National University, Busan Korea
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] Skew and geometrical constants of a Banach space2011
- Author(s)
  Ken-ichi Mitani, Kichi-Suke Saito, Yasuji Takahashi
- Organizer
  The seventh International Conference on Nonlinear Analysis and Convex Analysis
- Place of Presentation
  Pukyong National University, Busan Korea
- Year and Date
  2011-08-03
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] von Neumann-Jordan定数について2011
- Author(s)
  斎藤吉助
- Organizer
  作用素論・作用素環論研究集会(招待講演)
- Place of Presentation
  琉球大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Skewness and geometrical constants for Banach spaces2011
- Author(s)
  三谷健一, 斎藤吉助, 高橋泰嗣
- Organizer
  日本数学会秋期分科会
- Year and Date
  2011-09-28
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] バナッハ空間のskew定数について2011
- Author(s)
  K.Mitani, K.-S.Saito, Y.Takahashi
- Organizer
  非線形解析学と凸解析学の研究
- Place of Presentation
  京都大学数理解析研究所,京都府
- Year and Date
  2011-08-30
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] On the James constant of absolute norms on R^22011
- Author(s)
  小室直人, 斎藤吉助, 三谷健一
- Organizer
  数理研研究集会
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2011-02-14
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] von Neumann Jordan 定数について2011
- Author(s)
  斎藤吉助
- Organizer
  作用素論・作用素環論研究集会
- Place of Presentation
  琉球大学
- Year and Date
  2011-11-05
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] The sharp triangle inequalities and its applications to the geometry of Banach spaces2010
- Author(s)
  斎藤吉助
- Organizer
  CIA10
- Place of Presentation
  Hungary
- Year and Date
  2010-09-23
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Absolute nomの単調性とその応用2010
- Author(s)
  斎藤吉助
- Organizer
  京都大学数理解析研究所研究集会
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2010-08-31
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] absoluteノルムの端点のJames定数2010
- Author(s)
  三谷健一, 小室直人, 斎藤吉助
- Organizer
  日本数学会年会
- Place of Presentation
  慶応義塾大学矢上キャンパス
- Year and Date
  2010-03-25
- Data Source
  KAKENHI-PROJECT-19540169
[Presentation] Dunkl-Williams不等式と等号条件2010
- Author(s)
  富永雅, 斎藤吉助
- Organizer
  日本数学会年会
- Place of Presentation
  慶応義塾大学矢上キャンパス
- Year and Date
  2010-03-25
- Data Source
  KAKENHI-PROJECT-19540169
[Presentation] The sharp triangle inequalities and its applications to the geometry of Banach spaces2010
- Author(s)
  K.-S.Saito
- Organizer
  The Conference on Inequalities and Applications '10
- Place of Presentation
  Hajduszoboszlo, Hungary
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] absolute normの集合の端点構造につい2010
- Author(s)
  三谷健一、斎藤吉助、小室直人
- Organizer
  作用素論における非可換構造の研究とその応用
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] Sharp triangle inequalities in Banach spaces and the recent results2010
- Author(s)
  K.Mitani, K.-S.Saito
- Organizer
  実解析学シンポジウム
- Place of Presentation
  九州工業大学
- Year and Date
  2010-11-13
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] absolutノルムの端点のvon Neumann-Jordan定数2010
- Author(s)
  三谷健一, 小室直人, 斎藤吉助
- Organizer
  日本数学会年会
- Place of Presentation
  慶応義塾大学矢上キャンパス
- Year and Date
  2010-03-25
- Data Source
  KAKENHI-PROJECT-19540169
[Presentation] The sharp triangle inequalities and its applications to the geometry of Banach spaces2010
- Author(s)
  Kichi-Suke Saito
- Organizer
  Conference on Inegialities and Applications 2010
- Place of Presentation
  Hungary
- Year and Date
  2010-09-23
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] absolute normの集合の端点構造について2010
- Author(s)
  三谷健一, 斎藤吉助, 小室直人
- Organizer
  数理研研究集会
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2010-10-27
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Absolute normの単調性とその応用2010
- Author(s)
  斎藤吉助、三谷健害、小室直人
- Organizer
  非線形解析学と凸解析学の研究
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] Absolute normの単調性とその応用2010
- Author(s)
  斎藤吉助, 三谷健一, 小室直人
- Organizer
  数理研研究集会
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2010-08-31
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Extremal structure of absolute normalized norms on R^2 II2009
- Author(s)
  小室直人, 斎藤吉助, 三谷健一
- Organizer
  The Sixth International Conference on Nonlinear Analysis and Convex Analysis
- Place of Presentation
  Tokyo Institute of Technology
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Dual of two dimensional Lorentz spaces ant the James constant2009
- Author(s)
  斎藤吉助
- Organizer
  Analysis Inequality and Homogenety theory
- Place of Presentation
  Lulea, Sweden
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Dunkl-Williams不等式と作用素不等式について2009
- Author(s)
  斎藤吉助
- Organizer
  作用素論・作用素環論研究集会
- Place of Presentation
  奈良教育大学
- Year and Date
  2009-11-19
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] On sharp triangle inequalities in Banach spaces and its applications2009
- Author(s)
  Kichi-Suke Saito
- Organizer
  Banach and Function Spaces 2009
- Place of Presentation
  Kyushu Institute of Technology
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Dual of two dimensional Lorentz spaces and the James constant2009
- Author(s)
  K.-S.Saito
- Organizer
  Analysis, Inequalities and Homogenization Theory---Midnight sun conference in honor of Lars-Erik Persson
- Place of Presentation
  Lulea, Sweden
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] Extremal structure of absolute normalized norms on$\Bbb R^2$ II (招待講演)2009
- Author(s)
  N. Komuro, K. -S. Saito, K. -I. Mitani
- Organizer
  The Sixth International Conference onNonlinear and Convex Analysis
- Place of Presentation
  東京工業大学
- Year and Date
  2009-03-27
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] Refinements of sharp triangle inequalities in Banach spaces and its applications(招待講演)2009
- Author(s)
  K.-S.Saito
- Organizer
  Abstract Harmonic Analysis 2009
- Place of Presentation
  Kaohsiung, Taiwan
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] 作用素の世界からバナッハ空間の世界へ2009
- Author(s)
  斎藤吉助
- Organizer
  「関数解析学の研究とその応用」研究集会
- Place of Presentation
  新潟市コスモパル
- Year and Date
  2009-08-28
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] on share triangle inequalities in Banach spaces and its applications(招待講演)2009
- Author(s)
  K.-S.Saito
- Organizer
  The 3rd International Symposium on Banach and Function Spaces 2009
- Place of Presentation
  九州工業大学
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] On sharp triangle inequalities in Banach spaces and its applications2009
- Author(s)
  斎藤吉助
- Organizer
  Banach and Function Spaces 2009
- Place of Presentation
  Kyushu Institute of Technology, Tobata Campus Kitakyushu, Japan
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Refinements of sharp triangle inequalities in Banach spaces and its applications2009
- Author(s)
  斎藤吉助
- Organizer
  Abstract Harmonic Analysis 2009
- Place of Presentation
  National Sun Yat-sen University Kaohsiung, Taiwan
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Sharp triangle inequalityの等号条件2009
- Author(s)
  三谷健一, 斎藤吉助
- Organizer
  日本数学会秋季総合分科会
- Place of Presentation
  大阪大学
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] 作用素の世界からバナッハ空間の世界へ2009
- Author(s)
  斎藤吉助
- Organizer
  研究集会「関数解析学の研究とその応用」
- Place of Presentation
  新潟コスモパル
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] 作用素に対するDunkl-Williams 型不等式について2009
- Author(s)
  斎藤吉助
- Organizer
  数理研研究集会
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2009-10-29
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Sharp triangle inequalityの等号条件について2009
- Author(s)
  三谷健一, 斎藤吉助
- Organizer
  数理研研究集会
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2009-05-21
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Dual of two dimensional Lorentz spaces ant the James constant2009
- Author(s)
  Kichi-Suke Saito
- Organizer
  Analysis, Inequality and Homogenety theory
- Place of Presentation
  Lulea, Sweden
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Sharp triangle inequality の一般化について2008
- Author(s)
  田村高幸, 藤井正俊, 加藤幹雄, 斎藤吉助
- Organizer
  研究集会「バナッハ空間及び関数空間論の最近の進展とその応用」
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2008-06-05
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] Extremal structure of absolute normali zed normes on $\Bbb R^22008
- Author(s)
  N. Komuro, K. -S. Saito, K. -I. Mitani
- Organizer
  Asian Conference on Nonlinear Analysis and Optimization
- Place of Presentation
  島根大学
- Year and Date
  2008-09-15
- Data Source
  KAKENHI-PROJECT-18540199
[Presentation] Refinements of triangle inequalities in Banach spaces2008
- Author(s)
  Kichi-Suke Saito
- Organizer
  International Workshop on Interpolation Theory, Function Spaces and Related Topics
- Place of Presentation
  Toledo, Spain
- Year and Date
  2008-09-08
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Refinements of triangle inequalities in Banach spaces2008
- Author(s)
  K. -S. Saito
- Organizer
  International Workshop on Interpolation Theory, Function Spaces and Related Topic
- Place of Presentation
  Toledo, Spain
- Year and Date
  2008-09-08
- Data Source
  KAKENHI-PROJECT-18540199
[Presentation] Refinements of tria ngle inequalities in Banach spaces, International Workshop on Interpol ation Theory2008
- Author(s)
  K.-S. Saito
- Organizer
  Function Spaces and Related Topic
- Place of Presentation
  Toledo Spain
- Year and Date
  2008-08-08
- Data Source
  KAKENHI-PROJECT-18540199
[Presentation] Refinements of triangle inequalities in Banach spaces2008
- Author(s)
  斎藤吉助
- Organizer
  International Workshop on Interpolation Theory Function Spaces and Related Topics
- Place of Presentation
  Toledo, Spain
- Year and Date
  2008-09-08
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Extremal structure of absolute normalized norms on $\Bbb R^2$(招待講演)2008
- Author(s)
  N. Komuro, K. -S. Saito, K. -I. Mitani
- Organizer
  Asian Conference on NonlinearAnalysis and Optimization
- Place of Presentation
  Matsue
- Year and Date
  2008-09-15
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] Extremal structure of absolute normalized normes on R22008
- Author(s)
  小室直人, 斎藤吉助, 三谷健一
- Organizer
  Asian Conference on Nonlinear Analysis and Optimization
- Place of Presentation
  Japan
- Year and Date
  2008-09-15
- Data Source
  KAKENHI-PROJECT-20540158
[Presentation] Sharp triangle inequalityの一般化について2008
- Author(s)
  田村高幸, 藤井正俊, 加藤幹雄, 斎藤吉助
- Organizer
  京都大学数理解析研究所研究集会「バナッハ空間及び関数空間論の最近の進展とその応用」
- Place of Presentation
  京都,日本
- Data Source
  KAKENHI-PROJECT-20540179
[Presentation] ノルム空間の三角不等式を巡って2007
- Author(s)
  斎藤吉助
- Organizer
  作用素・作用素環論研究集会
- Place of Presentation
  千葉大学
- Year and Date
  2007-11-08
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] 三角不等式の精密化について2007
- Author(s)
  斎藤吉助
- Organizer
  数理研研究集会
- Place of Presentation
  京都大学
- Year and Date
  2007-06-07
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] James constant of absolute normed spaces2007
- Author(s)
  K, Mitani, K.-S,. Saito, T,. Suzuki
- Organizer
  RIMS Meeting
- Place of Presentation
  Kyoto Univ
- Year and Date
  2007-09-04
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] On sharp triangular inequalities in Banach spaces2007
- Author(s)
  K, Mitani, K.-S, Saito, M, Kato, T, Tamura
- Organizer
  Meeting of Math. Soc. Japan
- Place of Presentation
  Saitama Univ
- Year and Date
  2007-03-27
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] 三角不等式の精密化とその応用2007
- Author(s)
  斎藤吉助, 三谷健一, 加藤幹雄, 田村高幸
- Organizer
  京都大学数理解析研究所研究集会「バナッハ空間, 関数空間及び不等式の研究とその応用」
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2007-06-07
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540185
[Presentation] Refinement of the triangle inequality and application2007
- Author(s)
  Kichi-Suke, Saito
- Organizer
  Banach Spaces, Function Spaces and Inequalities with Applications
- Place of Presentation
  Research Institute for Mathematical Sciences, Kyoto University
- Year and Date
  2007-06-07
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540185
[Presentation] Refinement of triangle inequalities2007
- Author(s)
  K.-S, Saito, K, Mitani, M, Kato, T, Tamura
- Organizer
  RIMS Meeting
- Place of Presentation
  Kyoto Univ
- Year and Date
  2007-06-07
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] Around the tringle inequality2007
- Author(s)
  K.-S, Saito
- Organizer
  Meeting of operator theory and operator algebras
- Place of Presentation
  Chiba Univ
- Year and Date
  2007-10-08
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] On sharp triangle inequalities in Banach spaces2007
- Author(s)
  三谷健一, 斉藤吉助, 加藤幹雄, 田村高幸
- Organizer
  日本数学会年会
- Place of Presentation
  埼玉大学
- Year and Date
  2007-03-27
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540185
[Presentation] The geometrical constant and ψ-direct sums of Banach space2006
- Author(s)
  Ken-Ichi Mitani, Kichi-Suke Saito
- Organizer
  2nd International Symposium on Banach and Function Spaces 2006, 2006.9.14-17
- Place of Presentation
  九州工業大学
- Year and Date
  2006-09-16
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540185
[Presentation] The constant and St-direct sums of Banach spaces2006
- Author(s)
  K, Mitani, K. -S, Saito
- Organizer
  RIMS meeting
- Place of Presentation
  Kyoto Univ
- Year and Date
  2006-08-28
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] The geometrical constant and ψ-direct sums of Banach spaces2006
- Author(s)
  Ken-Ichi, Mitani, Kichi-Suke, Saito
- Organizer
  2nd International Symposium on Banach and Function Spaces 2006(Kyushu Institute of Technology)
- Place of Presentation
  Kitakyushu, Japan
- Year and Date
  2006-09-16
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540185
[Presentation] The geometrical constant and -direct sums of Banach spaces2006
- Author(s)
  K, Miani, K.-S, Saito
- Organizer
  International Symposium on Banach and funnction spaces
- Place of Presentation
  Kyushu Insitutute of Technology
- Year and Date
  2006-09-16
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] The form of invariant subspaces of L^2(T^2)2006
- Author(s)
  A. Hasegawa, K.-S, Saito
- Organizer
  RIMS meeting
- Place of Presentation
  Kyoto Univ
- Year and Date
  2006-10-12
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] Uniform non-1^n_1-ness of direct sums of Banach Spaces2006
- Author(s)
  加藤幹雄, 斉藤吉助, 田村高幸
- Organizer
  京都大学数理解析研究所研究集会「バナッハ空間及び関数空間の構造の研究」
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2006-06-08
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18540185
[Presentation] Uniform non-〓^n_1-ness of direct sums of Banach spaces2006
- Author(s)
  M. Kato, K.-S. Saito and T. Tamura
- Organizer
  バナッハ空間及び関数空間の構造の研究
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2006-06-08
- Data Source
  KAKENHI-PROJECT-18540199
[Presentation] Uniform non- e-ness of direct sums of Banach spaces2006
- Author(s)
  M, Kato, K.-S, Saito, T, Tamura
- Organizer
  RIMS meeting
- Place of Presentation
  Kyoto Univ
- Year and Date
  2006-06-08
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18540164
[Presentation] The geometrical constant and ψ-direct sums of Banach spaces2006
- Author(s)
  K.-I. Mitani and K.-S. Saito
- Organizer
  International Symposium on Banach and Function spaces
- Place of Presentation
  Kyushu Insitutute of Technology
- Year and Date
  2006-08-16
- Data Source
  KAKENHI-PROJECT-18540199
[Presentation] James constant of two dimensional Lorentz sequence spaces
- Author(s)
  Kichi-Suke Saito
- Organizer
  ICNAO2013 The international Conference on Nonlinear Analysis and Optimazation
- Place of Presentation
  中山大学
- Invited
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Characterizatyions of geometrical properties of Banach spaces using ψ-direct sums
- Author(s)
  Kichi-Suke Saito
- Organizer
  The Eighth International Conference on Nonlinear Analysis and Convex Analysis (NACA2013)
- Place of Presentation
  弘前大学
- Invited
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Convex properties of James and von Neumann-Jordan constant of absolute norms on R^2
- Author(s)
  Naoto Komuro, Kichi-Suke Saito and Ken-Ichi Mitani
- Organizer
  The Eighth International Conference on Nonlinear Analysis and Convex Analysis (NACA2013)
- Place of Presentation
  弘前大学
- Invited
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 2Lorentz数列空間及びその双対空間のJames定数
- Author(s)
  Ken-ichi Mitani , Kichi-Suke Saito and Ryotaro Tanaka
- Organizer
  日本数学会年会
- Place of Presentation
  学習院大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Beckner's inequality and its generalizations
- Author(s)
  Ryotaro Tanaka and Kichi-Suke Saito
- Organizer
  The Eighth International Conference on Nonlinear Analysis and Convex Analysis (NACA2013)
- Place of Presentation
  弘前大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 有限次元ノルムのノルム構造について
- Author(s)
  田中亮太朗、斎藤吉助
- Organizer
  日本数学会秋期分科会
- Place of Presentation
  愛媛大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Beckner の不等式とそのBanach 空間への応用について
- Author(s)
  斎藤吉助
- Organizer
  日本数学会
- Place of Presentation
  京都大学(京都府)
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] How to calculate James constant of Banach spaces?
- Author(s)
  斎藤吉助
- Organizer
  The foruth Internatinal symposium on Banach and Function Spaces
- Place of Presentation
  九州工業大学(福岡県)
- Invited
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] Beckner's inequality and its application to Banach spaces
- Author(s)
  斎藤吉助, 田中亮太朗, 小室直人
- Organizer
  京都大学数理解析研究所研究集会
- Place of Presentation
  京都大学
- Data Source
  KAKENHI-PROJECT-23540216
[Presentation] Recent development of James constant of two dimensional Lorentz sequence spaces
- Author(s)
  Kichi-Suke Saito, Ken-ichi Mitani and Ryotaro Tanaka
- Organizer
  RIMS研究集会
- Place of Presentation
  京都大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Becknerの不等式の一般化について
- Author(s)
  田中亮太朗､斎藤吉助
- Organizer
  数理解析研究所研究集会
- Place of Presentation
  京都大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] Recent results of Banach space theory
- Author(s)
  Kichi-Suke Saito
- Organizer
  Seminar Talk of University ofIowa
- Place of Presentation
  University of Iowa
- Invited
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 三角不等式の一般化について
- Author(s)
  泉田保、斎藤吉助､三谷健一
- Organizer
  数理解析研究所研究集会
- Place of Presentation
  京都大学
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 有限次元ノルムの正規直交基底について
- Author(s)
  田中亮太朗、斎藤吉助
- Organizer
  日本数学会秋期分科会
- Place of Presentation
  愛媛大学
- Data Source
  KAKENHI-PROJECT-23540189

1. WATANABE Keiichi (50210894)

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2. HATORI Osamu (70156363)

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saitou kichisuke 斎藤 吉助

SAITO Kichisuke 斎藤 吉助

SAITO Kichi-suke 斉藤 吉助

SAITO KichiーSuke 斉藤 吉助

斉藤 吉助 サイトウ キチスケ

斎藤 吉助 サイトウ キチスケ

Research Projects

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Co-Researchers

Geometric constants of Banach Spaces and their applicationsOngoing

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A study of geometric structure of Banach spaces and its applicationsPrincipal Investigator

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Various constants and norm inequalities in Banach spaces and its applicationsPrincipal Investigator

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The study of norm structure and various constants of Banach spaces, and its applicationsPrincipal Investigator

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The form of unit balls and the constants of Banach spaces and their applicationsPrincipal Investigator

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saitou kichisuke 斎藤吉助

SAITO Kichisuke 斎藤吉助

SAITO Kichi-suke 斉藤吉助

SAITO KichiーSuke 斉藤吉助

斉藤吉助サイトウキチスケ

斎藤吉助サイトウキチスケ