WATANABE Keiichi 渡邉恵一

… Alternative Names

渡邉恵一ワタナベケイイチ

渡邊恵一ワタナベケイイチ

渡辺恵一ワタナベケイイチ

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Researcher Number	50210894
Other IDs
External Links
Affiliation (Current)	2025: 新潟大学, 自然科学系, 教授
Affiliation (based on the past Project Information) *help	2021 – 2023: 新潟大学, 自然科学系, 教授 2015 – 2018: 新潟大学, 自然科学系, 教授 2007 – 2014: Niigata University, Institute of Science and Technology, Associate Professor 2005 – 2006: Niigata University, Institute of Science and Technology, Associate Professor, 自然科学系, 助教授 1994 – 2004: 新潟大学, 理学部, 助教授 2002: 新潟大学, 理学部, 教授 1989: 新潟大学, 理学部, 助手
Review Section/Research Field	Principal Investigator 解析学 / Basic Section 12010:Basic analysis-related / Basic analysis / Basic analysis / Global analysis Except Principal Investigator Basic analysis / 解析学 / Basic analysis / 代数学・幾何学
Keywords	Principal Investigator 作用素環 / 等距離作用素 / 非可換積分 / ジャイロベクトル / Lipschitz連続 / 作用素 / 関数解析 / ジャイロベクトル空間 / order preserving / Karamata … More / Hardy-Littlewood-Polya / Schur / Furuta inequality / Loewner-Heinz inequality / gyrovector space / gyrogroup / operator theory / operator inequality / Coクラス / 合成作用素 / algebraic operator / 荷重合成作用素 / 正則関数空間 / L^P空間 / L^p空間 / 非可換 / 構造 … More Except Principal Investigator von Neumann-Jordan定数 / James定数 / バナッハ空間 / smoothness / 一様凸性 / 可換Banach環 / 三角不等式 / スペクトル / 不変部分空間 / uniform convexity / Banach space / 直和空間 / composition operator / ring homomorphism / commutative Banach algebra / von Neumann-Jordan constant / 一様凸 / absolute norm / commutative Banach algebras / spectrum / 作用関数 / Fourier multiplier / 関数環 / ローレンツ空間 / Dunkl-Williams不等式 / 等距離写像 / バナッハ環 / Nest環 / subdiagonal環 / 作用素環 / Becknerの不等式 / π/2回転不変ノルム / absoluteノルム / 幾何学定数 / Radon空間 / Birkhoff直交 / Lorentz space / triangle inequality / James constant / algebraic equations / 代数方程式 / Hanner inequality / Clarkson inequality / direct sum / 狭義凸 / アブソリュートノルム / Hanner不等式 / Clarkson不等式 / Composition operator / strictly convex / uniformly convex / Banach Space / 狭義凸性 / Banach空間 / function spaces / function algebras / ultraseparating / composition operators / operating functions / maximal ideal spaces / ring homomorphisms / 関数空間 / 超分離性 / 合成作用素 / 極大イデアル空間 / 環準同形写像 / decomposable operator / Apostol algebra / operating function / Wiener-Pitt phenomenum / locally compact abelian group / commtative Banach algebra / キーワード8作用関数 / キーワード7decomposable作用素 / キーワード6Douglas環 / キーワード5Apostol環 / キーワード4Fourier multiplier / キーワード3自然なスペクトル / キーワード2Wiener-Pitt現象 / キーワード1局所コンパクトabel群 / 測度 / Wiener-Pitt現象 / decomposable作用素 / Apostol環 / Wlener-Pitt現象 / 局所コンパクトabel群 / subdiagonal algebra / invariant subspace / function algebra / operator algebra / Subdiagonal環 / Hilbert module / skew定数 / Dunkl-Williams定数 / ノルム空間 / von Neumann-Jordan 定数 / James 定数 / ノルム不等式 / Thmpson距離 / 正値可逆元 / ユニタリー群 / 代数構造 / C*環 / von Neumanr-Jordan定数 / 等距離同形写像 / 末梢スペクトル / 可換バナッハ環 / 関数解析 / ブルゲン環 / ブラシュケ積 / コロフキンの定理 / テープリッツ作用素 / ハ-ディ空間 / 作用素論 / ダイナミック・ゲ-ム / Toeplitz作用素 / von Neumann algebra / ト-ラス作用 / aspherical多様体 / 調和写像 / 概ケ-ラ-多様体 / アインシュタイン多様体 Less

ジャイロベクトル空間の関数解析的研究Principal Investigator
- Principal Investigator
  
  渡邉恵一
- Project Period (FY)
  2021 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 12010:Basic analysis-related
- Research Institution
  Niigata University
A study of geometric structure of Banach spaces and its applications
- 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
Various constants and norm inequalities in Banach spaces and its applications
- 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 spacesPrincipal Investigator
- 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
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
The study of norm structure and various constants of Banach spaces, and its applications
- 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
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 form of unit balls and the constants of Banach spaces and their applications
- 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 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 application
- 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 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
正則関数空間上の合成作用素のJordan型モデル理論に関する研究Principal Investigator
- Principal Investigator
  
  渡邉恵一
- Project Period (FY)
  2001 – 2002
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Basic analysis
- Research Institution
  Niigata University
Von Neumann-Jordan constant of Banach spaces and its application
- 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
非可換L^p空間上の等距離作用素の構造の研究Principal Investigator
- Principal Investigator
  
  渡邉恵一 (渡邊恵一)
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  Global 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
The structure of Hilbert modules over operator algebras and its application
- 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
  
  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
非可換積分論と非可換次元論の研究Principal Investigator
- Principal Investigator
  
  渡邊恵一
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  解析学
- Research Institution
  Niigata University
非可換積分論と非可換次元論の研究Principal Investigator
- Principal Investigator
  
  渡邉恵一
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (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

All 2023 2022 2021 2016 2015 2014 2013 2012 2011 2006 Other

All Journal Article Presentation

[Journal Article] Mobius gyrovector spaces and functional analysis (Research on preserver problems on Banach algebras and related topics)2023
- Author(s)
  WATANABE, Keiichi
- Journal Title
  
  RIMS Kokyuroku Bessatsu
  
  Volume: B93
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K03288
[Journal Article] On Lipschitz continuity with respect to the Poincare metric of linear contractions between Mobius gyrovector spaces2021
- Author(s)
  Keiichi Watanabe
- Journal Title
  
  Journal of Inequalities and Applications
  
  Volume: 2021 Issue: 1
- DOI
  10.1186/s13660-021-02700-0
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K03288
[Journal Article] A confirmation by hand calculation that the Moebius ball is a gyrovector space2016
- Author(s)
  Keiichi Watanabe
- Journal Title
  
  Nihonkai Math. J.
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] On the range of the parameters for the grand Furuta inequality to be valid2014
- Author(s)
  Keiichi Watanabe
- Journal Title
  
  J. Inequal. Appl.
  
  Volume: - Issue: 1
- DOI
  10.1186/1029-242x-2014-297
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] On the range of the parameters for the grand Furuta inequality to be valid II2014
- Author(s)
  K. Watanabe
- Journal Title
  
  J. Math. Inequal.
  
  Volume: 未定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On the range of the parameters for the grand Furuta inequality to be valid II2014
- Author(s)
  K. Watanabe
- Journal Title
  
  J. Math. Inequal.
  
  Volume: Not yet decided
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] Another consequence of Tanahashi's argument on best possibility of the grand Furuta inequality2013
- Author(s)
  Tatsuya Koizumi and Keiichi Watanabe
- Journal Title
  
  Cent. Eur. J. Math
  
  Volume: vol.11 Pages: 368-375
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540178
[Journal Article] A certain functional inequality derived from an operator inequality2013
- Author(s)
  K. Watanabe
- Journal Title
  
  J. Math. Inequal.
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] On a relation between a Schur, Hardy-Littlewood-P\'{o}lya, Karamata's theorem and an inequality of some products of $x^p - 1$ derived from the Furuta inequality2013
- Author(s)
  K. Watanabe
- Journal Title
  
  J. Inequal. Appl.
  
  Volume: ---
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] A certain functional inequality derived from an operator inequality2013
- Author(s)
  K. Watanabe
- Journal Title
  
  J. Math. Inequal.
  
  Volume: ---
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On a relation between a Schur, Hardy-Littlewood-Polya, Karamata's2013
- Author(s)
  K. Watanabe
- Journal Title
  
  J. Inequal. Appl.
  
  Volume: - Issue: 1
- DOI
  10.1186/1029-242x-2013-137
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] Another consequence of Tanahashi's argument on best possibility of the grand2012
- Author(s)
  T. Koizumi and K. Watanabe
- Journal Title
  
  Cent. Eur. J. Math.
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] A remark on extension of order preserving operator inequality2012
- Author(s)
  Tatsuya Koizumi and Keiichi Watanabe
- Journal Title
  
  J. Math. Inequal
  
  Volume: vol.6 Pages: 119-124
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540178
[Journal Article] On a simple range of parameters of the grand Furuta inequality2012
- Author(s)
  K. Watanabe
- Journal Title
  
  International Mathematical Forum
  
  Volume: 7
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540178
[Journal Article] Isometries between groups of invertible elements in $C^{*}$-algebras2012
- Author(s)
  Osamu Hatori, Keiichi Watanabe
- Journal Title
  
  Studia Math.
  
  Volume: 209 Pages: 103-106
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On a simple range of parameters of the grand Furuta inequality2012
- Author(s)
  Keiichi Watanabe
- Journal Title
  
  Int. Math. Forum
  
  Volume: vol.7 Pages: 2897-2902
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540178
[Journal Article] On a simple range of parameters of the grand Furuta inequality2012
- Author(s)
  K. Watanabe
- Journal Title
  
  International Mathematical Forum
  
  Volume: 7 Pages: 2897-2902
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] On monotonicity of some operator functions related to order preserving2012
- Author(s)
  T. Koizumi and K. Watanabe
- Journal Title
  
  J. Math. Inequal.
  
  Volume: 6 Issue: 4 Pages: 579-587
- DOI
  10.7153/jmi-06-55
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] An application of matrix inequalities to certain functional inequalities involving fractional powers2012
- Author(s)
  K. Watanabe
- Journal Title
  
  J. Inequal. Appl.
  
  Volume: 2012 Issue: 1
- DOI
  10.1186/1029-242x-2012-221
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189, KAKENHI-PROJECT-23540190
[Journal Article] On monotonicity of some operator functions related to order preserving operator inequalities2012
- Author(s)
  T. Koizumi, K. Watanabe
- Journal Title
  
  J. Math. Inequal.
  
  Volume: 6 Pages: 579-587
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540189
[Journal Article] Isometries between groups of invertible elements in C*-algebras2012
- Author(s)
  Osamu Hatori and Keiichi Watanabe
- Journal Title
  
  Studia Math
  
  Volume: vol.209 Pages: 103-106
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540178
[Journal Article] A remark on extension of order preserving operator inequality2012
- Author(s)
  T. Koizumi and K. Watanabe
- Journal Title
  
  J. Math. Inequal.
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] On a simple range of parameters of the grand Furuta inequality2012
- Author(s)
  K. Watanabe
- Journal Title
  
  International Mathematical Forum
  
  Volume: 7
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] Isometries between groups of invertible elements in C*-algebras2012
- Author(s)
  O. Hatori and K. Watanabe
- Journal Title
  
  Studia Math.
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] On best possibility of an extension of Furuta inequality2011
- Author(s)
  T. Koizumi and K. Watanabe
- Journal Title
  
  Int. J. Funct. Anal. Oper. Theory Appl.
  
  Volume: 3
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540190
[Journal Article] On best possibility of an extension of Furuta inequality2011
- Author(s)
  Tatsuya Koizumi and Keiichi Watanabe
- Journal Title
  
  Int. J. Funct. Anal. Oper. Theorey Appl
  
  Volume: vol.3 Pages: 155-161
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540178
[Journal Article] Ordered abelian group action and a Takesaki duality theorem for Arveson's spectral subspaces2006
- Author(s)
  Keiichi Watanabe
- Journal Title
  
  Kyoto Daigaku Suurikaisekisyo Koukyuuroku 1478
  
  Pages: 66-70
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-17540151
[Journal Article] 順序付き可換群の作用とArvesonスペクトル部分空間に対する竹崎双対定理の類似物2006
- Author(s)
  渡邉恵一
- Journal Title
  
  数理解析研究所講究録 1478
  
  Pages: 66-70
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17540151
[Journal Article] A variation of Takesaki Duality for ordered abelian groups and Arveson's spectral subspaces
- Author(s)
  Keiichi Watanabe
- Journal Title
  
  Contemp. Math. (印刷中)
- Data Source
  KAKENHI-PROJECT-17540151
[Journal Article] A variation of Takesaki duality for ordered abelian groups and Arveson' s spectral subspaces
- Author(s)
  Keiichi Watanabe
- Journal Title
  
  Contemp. Math. (to appear)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17540151
[Journal Article] A variation of Takesaki duality for ordered abelian groups and Arveson's spectral subspaces
- Author(s)
  Keiichi Watanabe
- Journal Title
  
  Contemp.Math. (to appear)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-17540151
[Presentation] 複素内積空間の開球におけるジャイロ演算について2023
- Author(s)
  渡邉恵一
- Organizer
  日本数学会
- Data Source
  KAKENHI-PROJECT-21K03288
[Presentation] 複素内積空間の開球におけるメビウス型の和について2023
- Author(s)
  渡邉恵一
- Organizer
  関数環研究集会
- Data Source
  KAKENHI-PROJECT-21K03288
[Presentation] Inner product gyrovector space について2022
- Author(s)
  渡邉恵一
- Organizer
  関数環研究集会
- Data Source
  KAKENHI-PROJECT-21K03288
[Presentation] 線形縮小作用素がメビウスの演算と距離に関してLipschitz連続であることについて2021
- Author(s)
  渡邉恵一
- Organizer
  日本数学会
- Data Source
  KAKENHI-PROJECT-21K03288
[Presentation] Mobius gyrovector spaces and functional analysis2021
- Author(s)
  Keiichi Watanabe
- Organizer
  Research on preserver problems on Banach algebras and related topics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03288
[Presentation] 線形縮小作用素のメビウスの距離に関する Lipschitz 連続性について2021
- Author(s)
  渡邉恵一
- Organizer
  関数環研究集会
- Data Source
  KAKENHI-PROJECT-21K03288
[Presentation] 位数の小さいジャイロ群について2015
- Author(s)
  渡邉恵一
- Organizer
  関数環研究集会
- Place of Presentation
  新潟大学駅南キャンパス「ときめいと」、新潟県新潟市
- Year and Date
  2015-12-19
- Data Source
  KAKENHI-PROJECT-15K04920
[Presentation] ジャイロベクトル空間について2015
- Author(s)
  渡邉　恵一
- Organizer
  作用素論・作用素環論研究集会
- Place of Presentation
  KKR妙高高原　白樺荘　（新潟県妙高市）
- Year and Date
  2015-10-24
- Invited
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] 位数の小さいジャイロ群について2015
- Author(s)
  渡邉　恵一
- Organizer
  関数環研究集会
- Place of Presentation
  新潟大学駅南キャンパス「ときめいと」　（新潟県新潟市）
- Year and Date
  2015-12-20
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] ジャイロベクトル空間入門2014
- Author(s)
  渡邉恵一
- Organizer
  第8回数物研究会
- Place of Presentation
  立命館大学東京キャンパス
- Year and Date
  2014-09-20
- Invited
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] 作用素不等式から導かれるある種の関数不等式について2013
- Author(s)
  渡邉恵一
- Organizer
  解析学セミナー
- Place of Presentation
  新潟大学理学部
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] グランドフルタ不等式の拡張、最良性について2013
- Author(s)
  渡邉恵一
- Organizer
  作用素論・作用素環論研究集会
- Place of Presentation
  お茶の水女子大学理学部
- Invited
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] ある作用素不等式に関係する作用素関数の単調性について2012
- Author(s)
  渡邉恵一
- 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] x^p - 1 の積の間の不等式2012
- Author(s)
  渡邉恵一
- Organizer
  日本数学会
- Place of Presentation
  九州大学伊都キャンパス
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] ある作用素不等式に関係する作用素関数の単調性について2012
- Author(s)
  渡邉恵一
- Organizer
  日本数学会
- Place of Presentation
  東京理科大学理学部
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] 一般化されたフルタ不等式の成立に関するパラメータの範囲について2012
- Author(s)
  渡邉恵一
- 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] On functional inequalities derived from operator inequalities of Furuta type2012
- Author(s)
  Keiichi Watanabe
- Organizer
  RIMS研究集会
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 行列不等式から導かれるある種の関数不等式について2012
- Author(s)
  渡邉恵一
- Organizer
  米沢数学セミナー
- Place of Presentation
  山形大学工学部
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 一般化されたフルタ型不等式の成立に関するパラメータの範囲について2012
- Author(s)
  渡邉恵一
- Organizer
  日本数学会
- Place of Presentation
  東京理科大学理学部
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] グランドフルタ不等式が成立するパラメータの範囲について2012
- Author(s)
  渡邉恵一
- Organizer
  関数環研究集会
- Place of Presentation
  日本大学理工学部
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] 行列不等式の、ある種の関数不等式への応用について2012
- Author(s)
  渡邉恵一
- Organizer
  つくばセミナー
- Place of Presentation
  筑波大学自然科学系
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] フルタ不等式に関する最近の結果について2012
- Author(s)
  渡邉恵一
- Organizer
  数物研究会
- Place of Presentation
  富山県民会館
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] On further extensions of order preserving operator inequality2011
- Author(s)
  Keiichi Watanabe
- Organizer
  スペクトル、数域などの作用素の幾何的特性量を用いた作用素の構造研究
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] 順序を保存する作用素不等式のある拡張について2011
- Author(s)
  渡邉恵一
- Organizer
  日本数学会
- Place of Presentation
  信州大学理学部
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] On recent results of order preserving operator inequalities2011
- Author(s)
  Keiichi Watanabe
- Organizer
  Banach環に関わるpreserver problems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-23540190
[Presentation] 順序を保存する作用素不等式の拡張に関する最近の結果について2011
- Author(s)
  渡邉恵一
- Organizer
  早稲田大学教育学部数学教室7階セミナー(招待講演)
- Place of Presentation
  早稲田大学教育学部
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] On further extension of order preserving operator inequality2011
- Author(s)
  Keiichi Watanabe
- Organizer
  スペクトル、数域などの作用素の幾何的特性量を用いた作用素の構造について
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] On recent results of order preserving operator inequalities2011
- Author(s)
  Keiichi Watanabe
- Organizer
  Banach環に関わるpreserver problemの研究とその応用
- Place of Presentation
  東都大学数理解析研究所
- Year and Date
  2011-11-02
- Data Source
  KAKENHI-PROJECT-22540178
[Presentation] 順序を保存する作用素不等式のある拡張について2011
- Author(s)
  渡邉恵一
- Organizer
  日本数学会
- Place of Presentation
  信州大学松本キャンパス
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] On recent results of order preserving operator inequalities2011
- Author(s)
  Keiichi Watanabe
- Organizer
  バナッハ環におけるpreserving problems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-23540189
[Presentation] グランドフルタ不等式の拡張、最良性について
- Author(s)
  渡邉恵一
- Organizer
  作用素論・作用素環論研究集会
- Place of Presentation
  お茶の水女子大学理学部
- Data Source
  KAKENHI-PROJECT-23540189
[Presentation] $x^p - 1$ の積の間の不等式
- Author(s)
  渡辺恵一
- Organizer
  日本数学会
- Place of Presentation
  九州大学伊都キャンパス
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] 作用素不等式から導かれるある種の関数不等式について
- Author(s)
  渡邉恵一
- Organizer
  解析学セミナー
- Place of Presentation
  新潟大学理学部
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] フルタ不等式に関する最近の結果について
- Author(s)
  渡邉恵一
- Organizer
  数物研究会
- Place of Presentation
  富山県民会館
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] 行列不等式から導かれるある種の関数不等式について
- Author(s)
  渡邉恵一
- Organizer
  米沢数学セミナー
- Place of Presentation
  山形大学工学部
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] On functional inequalities derived from operator inequalities of Furuta
- Author(s)
  Keiichi Watanabe
- Organizer
  RIMS研究集会
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-23540190
[Presentation] グランドフルタ不等式が成立するパラメータの範囲について
- Author(s)
  渡邉恵一
- Organizer
  関数環研究集会
- Place of Presentation
  日本大学理工学部
- Data Source
  KAKENHI-PROJECT-23540190

1. SAITO Kichisuke (30018949)

# of Collaborated Projects: 17 results

# of Collaborated Products: 0 results
2. HATORI Osamu (70156363)

# of Collaborated Projects: 14 results

# of Collaborated Products: 3 results
3. IZUCHI Keiji (80120963)

# of Collaborated Projects: 10 results

# of Collaborated Products: 0 results
4. KATO Mikio (50090551)

# of Collaborated Projects: 6 results

# of Collaborated Products: 0 results
5. MIURA Takeshi (90333989)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
6. TAKAHASHI Yasuji (30001853)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
7. SEIKIGAWA Kouei (60018661)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
8. TANAKA Kensuke (70018258)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
9. TAKAHASI Sin-ei (50007762)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
10. MITANI Ken-ichi (00468969)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
11. TAKAGI Hiroyuki (20206725)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. SUZUKI Tomonari (00303173)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 渡辺誠治 (40018271)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. 渡部剛 (60018257)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. 磯貝英一 (40108014)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 寺沢達雄 (00197790)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

WATANABE Keiichi 渡邉 恵一

渡邉 恵一 ワタナベ ケイイチ

渡邊 恵一 ワタナベ ケイイチ

渡辺 恵一 ワタナベ ケイイチ

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ジャイロベクトル空間の関数解析的研究Principal Investigator

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Research on Jordan type model theory of weighted composition operators on Hilbert spacesPrincipal Investigator

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正則関数空間上の合成作用素のJordan型モデル理論に関する研究Principal Investigator

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非可換L^p空間上の等距離作用素の構造の研究Principal Investigator

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WATANABE Keiichi 渡邉恵一

渡邉恵一ワタナベケイイチ

渡邊恵一ワタナベケイイチ

渡辺恵一ワタナベケイイチ