ITOKAWA Yoe 糸川銚

Researcher Number	90223205
Other IDs
External Links
Affiliation (based on the past Project Information) *help	2015 – 2022: 福岡工業大学, 情報工学部, 教授 1999 – 2002: 福岡工業大学, 情報工学部, 教授 1997 – 1998: 福岡工業大学, 情報工学部, 助教授 1994 – 1996: 福岡工業大学, 工学部, 助教授 1990: 九州大学, 理学部, 助手
Review Section/Research Field	Principal Investigator Geometry Except Principal Investigator Basic Section 11020:Geometry-related / Geometry / Basic analysis / 解析学 / 代数学・幾何学
Keywords	Principal Investigator リーマン多様体 / 断面曲率 / sectional curvature / リッチ曲率 / 部分多様体 / Galerkin approximation / Euler eq / Hahn-Banach type theorems / extension of functions / locally pseudoconvex spaces … More / comparison theorems / riemannian manifolds / トポノゴフの三角形比較定理 / 局所凸空間 / 正則関数の延長 / 局所擬凸複素空間 / 最短閉側地線 / ガレルキン近似 / Euler方程式 / Hahn-Banach型定理 / 関数の延長 / 局所擬凸空間 / 比較定理 / entropy function / systems of P.D.E. / complex locally convex spaces / homology / Ricci curvature / minimal varieties / manifolds / 統計多様体 / 漸近的性質 / カップされた偏微分方程式系 / 正則写像 / エントロピー関数 / ホモトピー関数 / 偏微分方程式系 / 複素局所凸空間 / ホモロジー / 極小部分多様体 / 多様体 / 多項式写像 / 凸空間 / ラインハート領域 / 擬凸 / 正則弓像 / 複素リー群 / ケーラー多様体 / Ricci曲率 / 極小超曲面 … More Except Principal Investigator ランダース計量 / 非対称距離構造 / 凸性 / 共役跡 / 切断跡 / 測地線 / フィンスラー多様体 / 局所凸空間 / ベアバルト計量 / フィンスラー計量 / 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 / 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 / 測地線の分岐現象 / 二重接束 / クリストッフェル記号 / 非対称距離空間 / Christoffel symbols / conjugate locus / cut locus / geodesic / non-symmetric distance / Finsler metric / 凸関数と凸集合 / フィンスラー幾何学 / 凸性と凸関数 / 非対称距離関数 / 指数写像 / the discrete Bolzmann equation / Hyperbolic-elliptic coupled systems / Homology group / Ricci curvature / Nuclear spaces / The topological tensor product / Entire functions / Weak Typeの正則写像 / 積分型写像 / ε-位相 / π-位相 / 正則拡大 / 一様有界型正則写像 / 核形空間 / 離散型方程式 / 一様有界型 / 位相テンソル積表現 / ボルツマン方程式 / 双曲・楕円混合方程式 / ホモロジー群 / リッチ曲率 / 核型空間 / 積分型多項式 / 位相テンソル積 / 整関数 / Ricci曲率 / 核四重極子 / ラインハルト領域 / 整級数展開 / 擬凸領域 / 多重劣調和関数 / 指数型整関数 / ホモロジ- / 微分同相 / ベッチ数 / ハウスドルフ収束 / 微分形式 / 曲率 / リ-マン計量 / 多様体 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
Convexity of complete Finsler Manifolds
- Principal Investigator
  
  SHIOHAMA Katsuhiro
- Project Period (FY)
  2015 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Fukuoka Institute of Technology
Global Studies on Curvature and Geometric Structures of Riemannian ManifoldsPrincipal Investigator
- Principal Investigator
  
  ITOKAWA Yoe
- Project Period (FY)
  2001 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Fukuoka Institute of Technology
The extension of holomorphic functions on locally convex spaces
- Principal Investigator
  
  NISHIHARA Masaru
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Fukuoka Institute of Technology
Calculus of Variation and Geometric Structures on ManifoldsPrincipal Investigator
- Principal Investigator
  
  ITOKAWA Yoe
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Fukuoka Institute of Technology
リーマン空間と部分多様体の大域的幾何学Principal Investigator
- Principal Investigator
  
  糸川銚
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Fukuoka Institute of Technology
無限次元空間における整関数の指標と擬凸領域の特徴づけ
- Principal Investigator
  
  西原賢
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Fukuoka Institute of Technology
リーマン部分多様体の幾何学的研究Principal Investigator
- Principal Investigator
  
  糸川銚
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Fukuoka Institute of Technology
微分幾何学的モ-ス理論の研究
- Principal Investigator
  
  SHIOHAMA Katsuhiro
- Project Period (FY)
  1990
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Kyushu University

All 2022 2021 2020 2019 2017 2016

All Journal Article

[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] 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 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] 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] Parallel Axiom and the Second Order Differentiability of Busemann Functions2017
- Author(s)
  N.Innami--Y.Itokawa--T.Nagano--K.Shiohama
- Journal Title
  
  Publ. Math. Debrecen
  
  Volume: 91
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04864
[Journal Article] Parallel axiom and the second order differentiability of Busemann functions2017
- Author(s)
  N.Innami--Y.Itokawa--T.Nagano--K.Shiohama
- Journal Title
  
  Publ. Math. Debrecen, Hungary
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K04864
[Journal Article] Strictly convex functions on complete Finsler manifolds2016
- Author(s)
  Y.Itokawa, K.Shiohama and Bankteshwar Tiwari
- Journal Title
  
  Proceedings of Mathematical Sciences, Indian Academy of Sciences
  
  Volume: to appear
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04864
[Journal Article] Strictly convex functions on complete Finsler manifolds2016
- Author(s)
  Y.Itokawa-K.Shiohama-B.Tiwari
- Journal Title
  
  Proc. Indian Acad. Sci. (Math. Sci.)
  
  Volume: 126 Issue: 4 Pages: 623-627
- DOI
  10.1007/s12044-016-0307-2
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04864

1. NISHIHARA Masaru (20112287)

# of Collaborated Projects: 6 results

# of Collaborated Products: 0 results
2. SHIOHAMA Katsuhiro (20016059)

# of Collaborated Projects: 3 results

# of Collaborated Products: 11 results
3. NISHIBATA Shinya (80279299)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
4. 川畑茂徳 (20037980)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. 永野哲也 (00259699)

# of Collaborated Projects: 2 results

# of Collaborated Products: 9 results
6. SHIRAKAWA Hiroshi (60002995)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. GOTO Midori (60162161)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. NISHIYAMA Takahiro (60333241)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 趙康治 (10197634)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 吉田正章 (30030787)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 梶原壌二 (90037169)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 白谷克巳 (80037168)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 印南信宏 (20160145)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results

ITOKAWA Yoe 糸川 銚

Research Projects

Research Products

Co-Researchers

Convexity and global behavior of geodesics on Finsler manifolds

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Convexity of complete Finsler Manifolds

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Global Studies on Curvature and Geometric Structures of Riemannian ManifoldsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

The extension of holomorphic functions on locally convex spaces

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Calculus of Variation and Geometric Structures on ManifoldsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

リーマン空間と部分多様体の大域的幾何学Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

無限次元空間における整関数の指標と擬凸領域の特徴づけ

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

リーマン部分多様体の幾何学的研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

微分幾何学的モ-ス理論の研究

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Geodesic families characterizing flat metrics on a cylinder and a plane2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Affine Functions and Busemann Functions on Complete Finsler manifolds2021

Author(s)

Journal Title

Data Source

[Journal Article] Axial straight lines in the covering surface of a Finsler surface2021

Author(s)

Journal Title

Data Source

[Journal Article] The Azimuthal Euidistant Projection for a Finsler Manifold by the Exponential Map2020

Author(s)

Journal Title

Data Source

[Journal Article] Blaschke Finsler Manifolds and Actions of Projective Randers Changes on Cut Loci2019

Author(s)

Journal Title

Data Source

[Journal Article] Blaschke Finsler Manifolds and actions of Projective Randers Changes on Cut Loci2019

ITOKAWA Yoe 糸川銚