INNAMI Nobuhiro 印南信宏

… Alternative Names

印南信宏インナミノブヒロ

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Researcher Number	20160145
Other IDs
Affiliation (based on the past Project Information) *help	2020 – 2022: 新潟大学, 自然科学系, フェロー 2019: 新潟大学, 自然科学系, 教授 2005 – 2017: 新潟大学, 自然科学系, 教授 2000 – 2004: 新潟大学, 理学部, 教授 1999: Graduate School of Science, Niigata University Prof., 大学院・自然科学研究所, 教授 … More 1999: Niigata Univ., Dept. Math. and Inform. Professor, 大学院・自然科学研究科, 教授 1998: 新潟大学, 大学院自然科学研究科, 教授 1997: 新潟大学, 自然科学研究科, 教授 1996: 新潟大学, 大学院・自然科学研究科, 教授 1994: 新潟大学, 理学部, 助教授 1991 – 1992: 新潟大学, 理学部, 助教授 1988: 新潟大学, 理学部, 助教授 1987: 名古屋工業大学, 工学部, 講師 Less
Review Section/Research Field	Principal Investigator Geometry / Geometry Except Principal Investigator Geometry / 代数学・幾何学 / Global analysis / Basic Section 11020:Geometry-related / General mathematics (including Probability theory/Statistical mathematics) / Geometry / 解析学
Keywords	Principal Investigator 測地線 / 測地線の幾何学 / リーマン幾何学 / Riemannian geometry / カットローカス / トポノゴフの比較定理 / 平面凸ビリヤード / 測地線の幾何 / 曲面 / 最短ネットワーク … More / 平行線の理論 / 平面凸ビリヤード問題 / シュタイナー比 / ワープド積 / リッカチ微分方程式 / トーラス / Finsler回転面 / 測地円 / ブーズマン関数 / 測地円の漸近挙動 / カット―ローカス / 非対称距離の幾何学 / フィンスラー幾何学 / geometru of geodesics / 張り合わせ多様体 / リーマン多様体 / 凸ビリヤード問題 / theory of parallels / billiard / 平行線の幾何 / ビリヤード / リーマン幾何 / 極 / コンジュゲートローカス / トポノゴフの定理 / 最小シュタイナー木 / 円のリヤード / エルゴード性 / 測地流 / 距離関数の差 / サブエルゴード性 / 曲面のボロノイ図 / サブ混合性 / 最小点軌跡 / 曲面上の幾何学 / 球面定理 / ボロノイ図 / 幾何学 / 大域幾何 / 曲率 / 球面のシュタイナー比 / 平面のシュタイナー比 / ギルバート・ポラックの予想 / 放射曲率 / 回転面 / 平行線 / 円 / アレキサンドルフ幾何 / 最短ネットワーク問題 / 微分幾何学 / ヘシアン / 勾配流 / 分解定理 / ヤコビ場 / ベクトル場 … More Except Principal Investigator 概ケーラー多様体 / J-holomorphic curve / Einstein manifold / 概複素構造 / Almost complex structure / Goldberg conjecture / 6次元球面 / 可解多様体 / Walker計量 / 概超複素多様体 / J-正則曲線 / Goldberg予想 / 概複素多様体 / Integrability / Almost Kaehler manifold / (概)ケーラー多様体 / 積分可能性 / アインシュタイン多様体 / スカラー曲率 / 撞球問題 / aspherical多様体 / フィンスラー計量 / 変換群 / ベアバルト計量 / ランダース計量 / 共役跡 / 平行性 / Blaschkeフィンスラー多様体 / コンパクト階数１対称空間 / Randers計量 / フィンスラー多様体 / アフィン函数 / 凸関数 / 正距方位図法 / 完備フィンスラー多様体 / 非対称距離函数 / ミンコフスキー空間 / 指数写像の正距方位図法 / Busemamnn関数 / 凸性 / 切断跡 / 非対称距離構造 / 測地線の分岐現象 / 二重接束 / クリストッフェル記号 / 測地線 / 非対称距離空間 / Christoffel symbols / conjugate locus / cut locus / geodesic / non-symmetric distance / Finsler metric / Average Identity Probability / Multigene Family / Infinite Allele Model / Measure Valued Diffusion / ユーエンズのサンプリング公式 / ライト・フィシャーモデル / 遺伝モデル / 無限次元拡散過程 / ユーンズのサンプリング公式 / 一致確率 / 多重遺伝子族 / 無限アリルモデル / 測度値拡散過程 / Walker metric / Solvmanifold / 6-dimensional sphere / Kaehler manifold / Weierstrass-Bryant公式 / 超極小J-正則曲線 / 概Hypercomplex(擬)エルミート多様体 / Goldbergの予想 / Walker manifold / Six dimensional sphere / Benson-Gordon予想 / Solvable group / Blair-Ianus汎関数 / Spin(7) / ケーラー多様体 / CR-submanifold / Nearly Kahler 6-dimensional sphere / Einstein metric / (Almost) Kahler manifold / Almost complex manifold / リッチ固有値 / 四元数構造 / 概エルミート構造 / Goldherg予想 / CR-部分多様体 / Nearlyケーラー6次元球面 / アインシュタイン計量 / 1-Dimensional Dynamical System / Complex Dynamical System / Classical Dynamical System / Symbolic Dynamical System / Fractal / Chaos / Discreet Dynamical System / Billiard System / エルゴード理論 / エントロピー / 複素力学系 / 1次元力学系 / 古典力学系 / 記号力学系 / フラクタル / カオス / 離散力学系 / ideal boundary / Liouville manifold / Riemannian manifold / Busemann関数 / Alexandrov空間 / 理想境界 / Liouville多様体 / Riemann多様体 / Hitchin-Thorpe type inequality / Cλ-manifold / Holomorphic sectional curvature / Weakly -Einstein manifold / Quasi Kaehler manifold / Maslou指数 / シンプレクティック構造 / C_L多様体 / (反)正則断面曲率 / (-)アインシュタイン多様体 / 概(擬)エルミート多様体 / C_l-多様体 / 弱-アインシュタイン多様体 / Hitchin-Thorpe型不等式 / Ce-多様体 / 正則断面曲率 / 弱^-アインシュタイン多様体 / Quasiケーラー多様体 / 定曲率空間 / 概ケーラー空間 / リー群 / ローレンツガス / 量子カオス / バーコフの問題 / エルゴード仮説 / 外部散乱問題 / 散逸的撞球系 / シナイの撞球系 / 楕円関数 / マルコフ決定過程 / 解析的接合積 / ラグランジアン力学系 / 失役点 / 曲率斉次空間 / アインシュタイン空間 / 密度関数 / 非可換Lpー空間 / m人ゲーム / 力学系 / 等質空間 / テプリッツ作用素 / イオン・ノイマン代数 / 非有界微分子 / 情報幾何学 / 作用素環 / 極小曲面 / ホイヘンスの原理 / リーマン計量 / アスフェリカル多様体 / リ-群 Less

Convexity and global behavior of geodesics on Finsler manifolds
- Principal Investigator
  
  Shiohama Katshiro
- Project Period (FY)
  2018 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Fukuoka Institute of Technology
Geometry of geodesics for spaces with non-symmetric distancesPrincipal Investigator
- Principal Investigator
  
  Innami Nobuhiro
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Geometry
- Research Institution
  Niigata University
The geometry of geodesics and its application to the discrete mathematicsPrincipal Investigator
- Principal Investigator
  
  INNAMI Nobuhiro
- Project Period (FY)
  2010 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Niigata University
Geometry of geodesics for minimal network problems and plane convex billiardsPrincipal Investigator
- Principal Investigator
  
  INNAMI Nobuhiro
- Project Period (FY)
  2006 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Niigata University
Study of topis related to almost complex structures
- Principal Investigator
  
  SEKGAWA Kouei
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Niigata University
Geometry of Almost Complex Manifolds
- Principal Investigator
  
  SEKIGAWA Kouei
- Project Period (FY)
  2002 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  NIIGATA UNIVERSITY
Research on Dynamical Systems, Chaos and Fractals Modeled by Billiard Systems in Aspect of Global Analysis
- Principal Investigator
  
  KUBO Izumi
- Project Period (FY)
  2001 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Global analysis
- Research Institution
  Hiroshima Institute of Technology
  Hiroshima University
Studies of glued Riemannian manifoldsPrincipal Investigator
- Principal Investigator
  
  INNAMI Nobuhiro
- Project Period (FY)
  2001 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Niigata University
撞球問題の総合的研究の企画
- Principal Investigator
  
  KUBO Izumi
- Project Period (FY)
  2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Global analysis
- Research Institution
  Hiroshima University
Geometry of Points at Infinity
- Principal Investigator
  
  SUGAHARA Kunio
- Project Period (FY)
  2000 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Osaka Kyoiku University
Geometry of Almost Hermitian Manifolds
- Principal Investigator
  
  SEKIGAWA Kouei
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  NIIGATA UNIVERSITY
Researches on vector fields in the large by Riccati equationPrincipal Investigator
- Principal Investigator
  
  INNAMI Nobuhiro
- Project Period (FY)
  1997 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Niigata University
ヤコビベクトル場による大域幾何学の研究Principal Investigator
- Principal Investigator
  
  印南信宏
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- 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
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
  
  WATABE Tsuyoshi
- 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
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
Stochastic Differential Equations and Their Applications
- Principal Investigator
  
  SHIMIZU Akinobu
- Project Period (FY)
  1987 – 1988
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Nagoya Institute of Technology

[Journal Article] Geodesic families characterizing flat metrics on a cylinder and a plane2022
- Author(s)
  N.Innami--Y.Itokawa--T.Nagano--K.Shiohama
- Journal Title
  
  MATHEMATICA SCANDINAVICA
  
  Volume: 128 Issue: 2
- DOI
  10.7146/math.scand.a-132247
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K03314
[Journal Article] Affine Functions and Busemann Functions on Complete Finsler manifolds2021
- Author(s)
  N.Innami--Y.Itokawa--T.Nagano--K.Shiohama
- Journal Title
  
  Proceedings of the American Mathematical Society
  
  Volume: 149
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K03314
[Journal Article] Axial straight lines in the covering surface of a Finsler surface2021
- Author(s)
  印南信広ー糸川銚ー永野哲也ー塩濱勝博
- Journal Title
  
  Nihonkai Mathematical Journal
  
  Volume: 32
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K03314
[Journal Article] The Azimuthal Euidistant Projection for a Finsler Manifold by the Exponential Map2020
- Author(s)
  N.Innami--Y.Itokawa--T.Nagano--K.Shiohama
- Journal Title
  
  Pacific Journal of Mathematics
  
  Volume: 308
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K03314
[Journal Article] Notes on Reversibility and Branching of Geodesics in Finsler Spaces2019
- Author(s)
  T.Nagano-N.Innami-Y.Itokawa-K.Shiohama
- Journal Title
  
  Bull. Inst. Politeh. Din Iasi (Romania)
  
  Volume: 65
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03314
[Journal Article] Blaschke Finsler Manifolds and actions of Projective Randers Changes on Cut Loci2019
- Author(s)
  N.Innami-Y.Itokawa-T.Nagano-K.Shiohama
- Journal Title
  
  Transactions of American Mathematical Society
  
  Volume: 371
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K03314
[Journal Article] Blaschke Finsler Manifolds and Actions of Projective Randers Changes on Cut Loci2019
- Author(s)
  N.Innami, Y.Itokawa, T.Nagano and K.Shiohama
- Journal Title
  
  Trans. Amer. Math. Soc.
  
  Volume: Vol 371, No. 10
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K03314
[Journal Article] Blaschke Finsler manifolds and actions of projective Randers changes on cut loci2018
- Author(s)
  N. Innami, Y. Itokawa, T. Nagano, K. Shiohama
- Journal Title
  
  Trans. Amer. Maht. Soc.
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K13435
[Journal Article] The asymptotic behavior of geodesic circles in any 2-torus : A sub-mixing property2018
- Author(s)
  Nobuhiro Innami, Toshiro Okura
- Journal Title
  
  Publ. Math. Debrecen
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K13435
[Journal Article] Parallel axiom and the 2-nd order differentiability of Busemann functions, to appear in Publ. Math. Debrecen, (with Y. Itokawa2018
- Author(s)
  N. Innami, Y. Itokawa, T. Nagano and K. Shiohama
- Journal Title
  
  Publ. Math. Debrecen
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K13435
[Journal Article] Geodesics in a Finsler surface with one-parameter group of motions2016
- Author(s)
  Nobuhiro Innami, Tetsuya Nagano, Katsuhiro Shiohama
- Journal Title
  
  Publ. Math. Debrecen
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K13435
[Journal Article] Angular distribution of diameters for spheres and rays for planes2015
- Author(s)
  Nobuhiro Innami and Yuya Uneme
- Journal Title
  
  Pacific J. Math.
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] Angular distribution of diameters for spheres and rays for planes2015
- Author(s)
  Nobuhiro Innami, Yuya Uneme
- Journal Title
  
  Pacific J. Math.
  
  Volume: 277
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K13435
[Journal Article] The cut locus and Voronoi diagram of a finite set of points in a surface (2015) (22 pages)2015
- Author(s)
  N. Innami, K. Shiohama and Y. Uneme
- Journal Title
  
  manuscripta math.
  
  Volume: 印刷中 Issue: 1-2 Pages: 243-264
- DOI
  10.1007/s00229-015-0733-y
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] The front of increasing concentric balls and cut locus in a surface2014
- Author(s)
  N. Innami, K Shiohama and Y. Uneme
- Journal Title
  
  Diff. Geom. Appl.
  
  Volume: 34 Pages: 80-86
- DOI
  10.1016/j.difgeo.2014.04.001
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] Complete real hypersurfaces and special K-line bundles in K-hyperbolic spaces2013
- Author(s)
  Nobuhiro Innami, You Itokawa, Katsuhiro Shiohama
- Journal Title
  
  International J. Math.
  
  Volume: 24
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] A sphere theorem for radial curvature2013
- Author(s)
  Nobuhiro Innami, Katsuhiro Shiohama, Yuya Uneme
- Journal Title
  
  Nihonkai Math. J.
  
  Volume: 24 Pages: 93-102
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] Differentiability of invariant circles for strongly integrable convex billiards2013
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Nihonkai Math. J.
  
  Volume: 24 Pages: 1-17
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] The Alexandrov-Toponogov comparison theorem for radial curvature2013
- Author(s)
  Nobuhiro Innami, Katsuhiro Shiohama, Yuya Uneme
- Journal Title
  
  Nihonkai Math. J.
  
  Volume: 24 Pages: 57-91
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] The asymptotic behavior of geodesic circles in a 2-torus of revolution and a sub-ergodic property2012
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Nihonkai Math. J.
  
  Volume: 23 Pages: 43-55
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] The cut loci, conjugate loci and poles in a complete Riemannian manifold2012
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Geom. Funct. Anal.
  
  Volume: 22 Pages: 1400-1406
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] Metric spheres in the projective spaces with constant holomor phic sectional curvature2011
- Author(s)
  Innami, Nobuhiro
- Journal Title
  
  Tsukuba J.Math
  
  Volume: 35 Pages: 79-90
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] The Steiner ratio conjecture of Gilbert-Pollak may still be open2010
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Algorithmica
  
  Volume: 57 Pages: 869-872
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540072
[Journal Article] Circular billiards and parallel axiom in convex billiards2009
- Author(s)
  Tamura Shinetsu, Innami Nobuhiro
- Journal Title
  
  Tsukuba J. Math 33,no.1
  
  Pages: 147-160
- NAID
  120007129035
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Steiner ratios for length spaces having ends2008
- Author(s)
  Tamura Shinetsu, Innami Nobuhiro
- Journal Title
  
  Nihonkai Math. J 19,no.2
  
  Pages: 105-110
- NAID
  110007605576
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Compression theorems for surfaces and their applications2007
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  J. Math. Soc. Japan 59
  
  Pages: 825-835
- NAID
  10019540082
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Compression theorems for surfaces and their applications2007
- Author(s)
  Innami Nobuhiro
- Journal Title
  
  J. Math. Soc. Japan 59,no.3
  
  Pages: 825-835
- NAID
  10019540082
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Compression theorems for surfaces and their applications2007
- Author(s)
  Nobuhiro INNAMI
- Journal Title
  
  applications,Journal of the Mathematical Society of Japan Vol. 59, No. 3
  
  Pages: 825-835
- NAID
  10019540082
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Steiner ratio for hyperbolic surfaces2006
- Author(s)
  N.Innami
- Journal Title
  
  Proceedings of the Japan Academy 82・6
  
  Pages: 77-79
- NAID
  120006746841
- Data Source
  KAKENHI-PROJECT-16540057
[Journal Article] Steiner ration for hyperbolic surfaces2006
- Author(s)
  Nobuhiro INNAMI
- Journal Title
  
  Proceedings of the Japan Academy 82・6
  
  Pages: 77-79
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Steiner ratio for hyperbolic surfaces2006
- Author(s)
  Nobuhiro INNAMI, Byung HakKim
- Journal Title
  
  Proceedings of the Japan Academy Vol. 82, No. 6
  
  Pages: 77-79
- NAID
  120006746841
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Steiner ratio for hyperbolic surfaces2006
- Author(s)
  Innami Nobuhiro, Kim Byung Hak
- Journal Title
  
  Proc. Japan Acad. Ser. A Math. Sci 82,no.6
  
  Pages: 77-79
- NAID
  120006746841
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Geometry of geodesics for convex billiards and circular billiards2002
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Nihonkai Math.J 13
  
  Pages: 73-120
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13640068
[Journal Article] Geometry of geodesics for convex billiards and circular billiards2002
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Nihonkai Math.J. 13, 1
  
  Pages: 73-120
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13640068
[Journal Article] Gradient vector fields which characterize warped products2001
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Math.Scan. 88
  
  Pages: 182-192
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13640068
[Journal Article] Jacobi vector fields along geodesies in glued Riemannian manifolds2001
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Nihonkai Math.J. 12, 2
  
  Pages: 101-112
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13640068
[Journal Article] Gradient vector fields which characterize warped products2001
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Math.Scand. 88
  
  Pages: 182-192
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13640068
[Journal Article] Jacobi vector fields along geodesics in glued Riemannian manifolds2001
- Author(s)
  Nobuhiro Innami
- Journal Title
  
  Nihonkai Math.J. 12
  
  Pages: 101-112
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13640068
[Journal Article] Compression theorems for surfaces and their applications
- Author(s)
  N.Innami
- Journal Title
  
  Journal of Mathematical Society of Japan (in printing)
- NAID
  10019540082
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540057
[Journal Article] The Steiner ratio conjecture of Gilbert-Pollak may still be open
- Author(s)
  N. Innami, B. H. Kim, Y. Mashiko and K. Shiohama
- Journal Title
  
  Algorithmica, to appear
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] The Steiner ratio conjecture of Gilbert-Pollak may still be open
- Author(s)
  N. Innami
- Journal Title
  
  Algorithmica (to appear) (掲戴決定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Compression theorems for surfaces and their applications
- Author(s)
  Nobuhiro INNAMI
- Journal Title
  
  Journal of the Mathematics Society of Japan (印刷中)
- NAID
  10019540082
- Data Source
  KAKENHI-PROJECT-18540076
[Journal Article] Compression theorems for surfaces and their applications
- Author(s)
  N.Innami
- Journal Title
  
  J. Math. Soc. Japan (To appear in)
- NAID
  10019540082
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540057
[Presentation] トーラス上の測地円の漸近挙動2018
- Author(s)
  印南信宏
- Organizer
  日本数学会年会
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] トーラス上の測地線を参考にした曲面上の測地線2018
- Author(s)
  印南信宏
- Organizer
  研究会「直観幾何学2018」
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] カットローカスの最近点について2017
- Author(s)
  印南信宏
- Organizer
  日本数学会年会
- Place of Presentation
  首都大学東京
- Year and Date
  2017-03-25
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] 射影的ランダース変換とカットローカス2017
- Author(s)
  印南信宏
- Organizer
  日本数学会秋季総合分科会
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] 非対称距離空間の幾何学2017
- Author(s)
  印南信宏
- Organizer
  研究会「直観幾何学2017」
- Place of Presentation
  熊本大学
- Year and Date
  2017-02-12
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] カットローカスの最近点に関する Klingenberg 補題の Finsler 版2017
- Author(s)
  印南信宏
- Organizer
  研究会「測地線および関連する諸問題
- Place of Presentation
  熊本大学
- Year and Date
  2017-01-08
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] Limit circles in a torus2017
- Author(s)
  Nobuhiro Innami
- Organizer
  52nd Symposium on Finsler Geometry
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] 射影的ランダース変換とカットローカス2017
- Author(s)
  印南信宏
- Organizer
  研究会「測地線及び関連する諸問題2018」
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] Voronoi diagrams and cut loci in surfaces2016
- Author(s)
  Nobuhiro Innami
- Organizer
  The Cut Locus : A bridge over differential geometry, optimal control, and transport
- Place of Presentation
  King Mongkut's Institute of Technology Ladkrabang, Thailand
- Year and Date
  2016-08-03
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] 平行線の公理とBusemann関数の微分可能性2016
- Author(s)
  印南信宏
- Organizer
  日本数学会秋季総合分科会
- Place of Presentation
  関西大学
- Year and Date
  2016-09-15
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] Geodesics in a Finsler torus of revolution2016
- Author(s)
  印南　信宏
- Organizer
  研究集会「測地線及び関連する諸問題」
- Place of Presentation
  熊本大学教育学部
- Year and Date
  2016-01-10
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] Finsler 回転面上の測地線の大域挙動2016
- Author(s)
  印南　信宏
- Organizer
  日本数学会年会
- Place of Presentation
  筑波大学
- Year and Date
  2016-03-19
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] The Finsler version of Klingenberg's lemma2016
- Author(s)
  Nobuhiro Innami
- Organizer
  51st Symposium on Finsler Geometry
- Place of Presentation
  鹿児島県市町村自治会館
- Year and Date
  2016-11-18
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] 曲面上のボロノイ図とカットローカス2015
- Author(s)
  印南信宏
- Organizer
  研究集会「直観幾何学」
- Place of Presentation
  熊本大学（熊本県・熊本市中央区黒髪）
- Year and Date
  2015-03-10
- Data Source
  KAKENHI-PROJECT-22540072
[Presentation] Geodesics in a Finsler torus of revolution2015
- Author(s)
  Nobuhiro Innami
- Organizer
  19th International Workshop on: HERMITIAN-GRASSMANNIAN SUBMANIFOLDS AND ITS APPLICATIONS & the 10th KNUHGRG-OCAMI Joint Differential Geometry Workshop
- Place of Presentation
  Daejeon, Korea
- Year and Date
  2015-10-27
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K13435
[Presentation] 曲面上の測地円とカットローカス2015
- Author(s)
  印南信宏
- Organizer
  研究会「測地線及び関連する諸問題
- Place of Presentation
  熊本大学（熊本県・熊本市中央区黒髪）
- Year and Date
  2015-01-10
- Data Source
  KAKENHI-PROJECT-22540072
[Presentation] フィンスラー計量を持つ回転トーラス上の測地線2015
- Author(s)
  印南信宏
- Organizer
  日本数学会年会
- Place of Presentation
  明治大学（東京都・千代田区神田駿河台）
- Year and Date
  2015-03-24
- Data Source
  KAKENHI-PROJECT-22540072
[Presentation] フィンスラー計量から導入される３つの距離とその測地線2014
- Author(s)
  印南信宏
- Organizer
  福岡大学微分幾何研究会
- Place of Presentation
  福岡大学セミナーハウス（福岡県・福岡市中央区六本松）
- Year and Date
  2014-11-01
- Data Source
  KAKENHI-PROJECT-22540072
[Presentation] Three distances induced from a Finsler metric and their geodesics in a 2-torus2014
- Author(s)
  Nobuhiro Innami
- Organizer
  The 49th Symposium on Finsler Geometry
- Place of Presentation
  長崎産業会館（長崎県・長崎市大黒町）
- Year and Date
  2014-12-05
- Data Source
  KAKENHI-PROJECT-22540072
[Presentation] 多角形に関するシュタイナー比の比較定理2013
- Author(s)
  印南信宏
- Organizer
  研究会「直観幾何学」
- Place of Presentation
  熊本大学教育学部
- Invited
- Data Source
  KAKENHI-PROJECT-22540072
[Presentation] 平面凸ビリヤードの不変円の微分可能性について2011
- Author(s)
  印南信宏
- Organizer
  研究集会「部分多様体幾何とリー群作用2011」
- Place of Presentation
  東京理科大学森戸記念館
- Year and Date
  2011-09-03
- Data Source
  KAKENHI-PROJECT-22540072
[Presentation] ラジアル曲率によるトポノゴフの比較定理2011
- Author(s)
  印南信宏
- Organizer
  研究集会「リーマン幾何と幾何解析」
- Place of Presentation
  筑波大学
- Year and Date
  2011-02-19
- Data Source
  KAKENHI-PROJECT-22540072
[Presentation] 平面凸ビリヤードの稠密軌道について2010
- Author(s)
  印南信宏
- Organizer
  測地線及び関連する諸問題
- Place of Presentation
  熊本大学
- Year and Date
  2010-01-09
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 平面凸ビリヤードの稠密軌道について2010
- Author(s)
  印南信宏
- Organizer
  研究集会「測地線及び関連する諸問題」
- Place of Presentation
  熊本大学
- Year and Date
  2010-01-09
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 最短ネットワークのシュタイナー比問題2010
- Author(s)
  印南信宏
- Organizer
  直観幾何学
- Place of Presentation
  熊本大学
- Year and Date
  2010-02-13
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] シュタイナー比に関するGilbert-Pollak 予想の証明には誤りがある2009
- Author(s)
  印南信宏
- Organizer
  研究集会(測地線及び関連する諸問題)
- Place of Presentation
  熊本大学
- Year and Date
  2009-01-11
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] シュタイナー比に関するGilbert-Pollak予想の証明には誤りがある2009
- Author(s)
  印南信宏
- Organizer
  測地線及び関連する諸問題
- Place of Presentation
  熊本大学
- Year and Date
  2009-01-11
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] シュタイナー比に関するGilbert-Pollak予想の証明には誤りがある2009
- Author(s)
  印南信宏
- Organizer
  研究集会「測地線及び関連する諸問題」
- Place of Presentation
  熊本大学
- Year and Date
  2009-01-11
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 曲面上の最小シュタイナー木問題とフェルマー・トリチェリ問題2009
- Author(s)
  印南信宏
- Organizer
  東海大学微分幾何セミナー
- Place of Presentation
  東海大学
- Year and Date
  2009-09-21
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] Gilbert-Pollakのシュタイナー比予想について2009
- Author(s)
  印南信宏
- Organizer
  リーマン幾何と幾何解析
- Place of Presentation
  筑波大学
- Year and Date
  2009-02-20
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 距離を減少させる三角形間の写像とその応用2008
- Author(s)
  印南信宏
- Organizer
  研究集会(第10回測地線及び関連する諸問題)
- Place of Presentation
  熊本大学
- Year and Date
  2008-01-05
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] シュタイナー比に関するGilbert-Pollakの予想について2008
- Author(s)
  印南信宏
- Organizer
  微分幾何学と複素構造
- Place of Presentation
  新潟大学
- Year and Date
  2008-11-05
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 距離を減少させる三角形間の写像とその応用2008
- Author(s)
  印南信宏
- Organizer
  研究集会「第10回測地線及び関連する諸問題」
- Place of Presentation
  熊本大学
- Year and Date
  2008-01-05
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 非負曲率アレキサンドルフ曲面のシュタイナー比について2008
- Author(s)
  印南信宏
- Organizer
  等質空間の不変構造と部分多様体
- Place of Presentation
  千葉工業大学津田沼校舎
- Year and Date
  2008-03-13
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 距離を減少させる三角形間の写像とその応2008
- Author(s)
  印南信宏
- Organizer
  第10回測地線及び関連する諸問題
- Place of Presentation
  熊本大学
- Year and Date
  2008-01-05
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] Steiner ratio for surfaces2007
- Author(s)
  印南信宏
- Organizer
  NIMS International Workshop on Riemannian Geometry and Related Area, National Institute for Mathematical Sciences
- Place of Presentation
  大韓民国
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] Compression theorems for surfaces with curvature bounded below I. II2006
- Author(s)
  印南信宏
- Organizer
  Global Analysis of Real and Complex Manifolds, Cheju National University
- Place of Presentation
  大韓民国
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 曲面上の領域の圧縮定理2006
- Author(s)
  印南信宏
- Organizer
  多様体上の微分方程式
- Place of Presentation
  KKRホテル金沢
- Year and Date
  2006-12-07
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] Compression theorems for surfaces2006
- Author(s)
  印南信宏
- Organizer
  微分幾何学セミナー
- Place of Presentation
  筑波大学
- Year and Date
  2006-12-07
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 最短ネットワーク問題におけるシュタイナー比について2006
- Author(s)
  印南信宏
- Organizer
  広島幾何学研究集会2006
- Place of Presentation
  広島大学
- Year and Date
  2006-10-04
- Data Source
  KAKENHI-PROJECT-18540076
[Presentation] 回転面を参照した球面定理
- Author(s)
  印南信宏
- Organizer
  研究集会「測地線及び関連する諸問題」
- Place of Presentation
  熊本大学教育学部
- Data Source
  KAKENHI-PROJECT-22540072

1. SEKIGAWA Kouei (60018661)

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2. WATABE Tsuyoshi (60018257)

# of Collaborated Projects: 7 results

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3. 斎藤吉助 (30018949)

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5. MATSUSHITA Yasuo (90144336)

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8. KUBO Izumi (70022621)

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9. MORITA Takehiko (00192782)

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10. HASHIMOTO Hideya (60218419)

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36. ITOKAWA Yoe

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37. 塩浜勝博

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INNAMI Nobuhiro 印南 信宏

印南 信宏 インナミ ノブヒロ

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Geometry of geodesics for spaces with non-symmetric distancesPrincipal Investigator

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The geometry of geodesics and its application to the discrete mathematicsPrincipal Investigator

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Geometry of geodesics for minimal network problems and plane convex billiardsPrincipal Investigator

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Studies of glued Riemannian manifoldsPrincipal Investigator

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Researches on vector fields in the large by Riccati equationPrincipal Investigator

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ヤコビベクトル場による大域幾何学の研究Principal Investigator

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INNAMI Nobuhiro 印南信宏

印南信宏インナミノブヒロ