TSUBOI KENJI 坪井堅二

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TSUBOI Kenji 坪井堅二

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Researcher Number	50180047
Other IDs
Affiliation (based on the past Project Information) *help	2016 – 2017: 東京海洋大学, 学術研究院, 教授 2015: 東京海洋大学, その他部局等, 教授 2013 – 2014: 東京海洋大学, 海洋科学技術研究科, 教授 2004 – 2008: Tokyo University of Marine Science & Technology (TUMST), Faculty of Marine Science, Professor, 海洋科学部, 教授 2003: 東京海洋大学, 海洋科学部, 助教授 1992 – 2002: 東京水産大学, 水産学部, 助教授 1987 – 1989: 東京水産大学, 水産学部, 講師
Review Section/Research Field	Principal Investigator Geometry / Geometry / 代数学・幾何学 / 解析学 Except Principal Investigator Global analysis / Basic analysis / 解析学
Keywords	Principal Investigator 楕円型作用素 / Futaki invariant / 二木不変量 / Bando-Calabi-Futaki不変量 / 複素多様体 / 同変行列式 / 群作用 / determinant / Bando-Calabi-Futaki invariant / 定曲率ケーラー計量 … More / elliptic operator / アインシュタイン計量 / アインシュタイン=ケーラー計量 / 不動点公式 / 概複素多様体 / 正則ベクトル場 / 固定点集合 / 回転角 / 逆問題 / ディラック作用素 / Calabi's conjecture / Eta invariant / Elliptic complex / Gravitational instanton / Einstein-Kaehler manifold / moment map / self-intersection form / 動力インスタントン / Einstein-Kahler計量 / eta不変量 / momentmap / Self-intersection form / 複多面体群 / 4次元多様体 / キャラビの予想 / エ-タ-不変量 / 楕円型複体 / 重力インスタントン / アインシュタイン=ケ-ラ-多様体 / rotation angle / fixed point set / equivariant determinant / group action / Kahler metric of constant curvature / complex manifolds / 定曲率ケーラ計量 / holonomy / 楕円型作用型 / integral invariants / Constant scalar curvature Kahler metric / the lifted Futaki invariants / Dirac operator / Einstein metric / Complex manifold / 第1チャーン形式 / 閉複素多様体 / リー群準同型写像 / 障害 / 自己同型群 / 複素自己同型写像 / 概複素自己同型写像 / Band-Calabi-Futaki不変量 / 積分不変量 / 拡張二木不変量 / Futaki-Morita invariant polynomial / Witten holonomy / Eistein-taehlermetric / fixedpoint formula / Atiyah-Singer index / 非線形項 / 分岐曲線 / 非線形境界値問題 / Wittenのホロノミー公式 / 微分作用素のdeterminant / 微分作用素 / 二木=森田不変式 / Wittenホロノミー / Atiyah-Singer指数 / コンパクト・リーマン面 / 非可換有限群 / 写像類群 / 符号作用素 / Eisenstein の公式 / Zagier の公式 / 同変指数 / Atiyah-Singer 指数 / 作用の回転角 / 向きづけられた多様体 / 変換群 / 有限群作用 / 向き付けられた多様体 / 固定点情報 / BCF-character / 定スカラー曲率 / ケーラー計量 / reductive / Futaki不変量 / 作用 / 有限群 / BCF character / ケーラー類 / 定スカラー曲率ケーラー計量 / リーマン面 / 行列式 / 不動点集合 / トポロジー / 葉層構造 / 1階擬楕円型作用素 / 分岐理論 / 拡張ニホ不変量 … More Except Principal Investigator inverse problem / 積分方程式 / 非線形項 / 逆問題 / potentials / Marchenko equation / Schrodinger equation / inverse scattering problem / energy dependent scattering / 生物個体数 / モデル方程式 / 周期軌道 / カオス / Marchenkoの方程式 / 非線形問題 / クライン・ゴードン方程式 / シュレディンガー方程式 / マルチェンコ方程式 / 再構成法 / 移流拡散方程式 / ポテンシャル / Marchenko方程式 / Schrodinger方程式 / 逆散乱問題 / エネルギー依存散乱 / conductivity identification / population dynamics / mathematical ecology / inverse bifurcation problem / Wiener-Hopf equation / singular integral equation / nonlinear inverse problem / 非線形微分方程式 / 熱伝導率 / 非線型逆問題 / Wiener-Hopf作用素 / 反応拡散方程式 / 伝導率同定 / 個体数ダイナミクス / 数理生態学 / 逆分岐問題 / Wiener-Hopf方程式 / 特異積分方程式 / 非線形逆問題 / convolution / integral equation / boundary value problem / nonlinear term / 固有関数 / Abel方程式 / 分岐 / 陰関数定理 / 合成積 / 第一分岐 / 境界値問題 Less

THE GROUP ACTIONS ON MANIFOLDS AND THE EQUIVARIANT DETERMINANT OF ELLIPTIC OPERATORS.Principal Investigator
- Principal Investigator
  
  TSUBOI KENJI
- Project Period (FY)
  2013 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Tokyo University of Marine Science and Technology
The finite group action and the equivariant determinant of elliptic operatorsPrincipal Investigator
- Principal Investigator
  
  TSUBOI Kenji
- Project Period (FY)
  2005 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Tokyo University of Marine Science and Technology
Inverse Problems in Nonlinear Phenomena
- Principal Investigator
  
  KAMIMURA Yutaka
- Project Period (FY)
  2003 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Global analysis
- Research Institution
  Tokyo University of Marine Science and Technology
  東京水産大学
Kahler metrics of constant curvature on complex manifolds and topological invariantsPrincipal Investigator
- Principal Investigator
  
  TSUBOI Kenji
- Project Period (FY)
  2002 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Tokyo University of Marine Science & Technology (TUMST)
  東京水産大学
Nonlinear Inverse Problems and Singular Integral Equations
- Principal Investigator
  
  KAMIMURA Yutaka
- Project Period (FY)
  1998 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Basic analysis
- Research Institution
  Tokyo University of Fisheries
Einstein metric on complex manifolds and the lifted Futaki invariantPrincipal Investigator
- Principal Investigator
  
  TSUBOI Kenji
- Project Period (FY)
  1997 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Tokyo University of fisheries
An Inverse Bifurcation Problem and a generelization of Abel's equation
- Principal Investigator
  
  KAMIMURA Yutaka
- Project Period (FY)
  1995 – 1997
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  TOKYO UNIVERSITY OF FISHERIES
The determination of the nonlinear term by the bifurcating curve of a solution of a nonlinear boundary valne problemPrincipal Investigator
- Principal Investigator
  
  TSUBOI Kenji, 上村豊
- Project Period (FY)
  1993 – 1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Tokyo University of Fisheries
微分作用素と多様体の幾何的構造Principal Investigator
- Principal Investigator
  
  坪井堅二
- Project Period (FY)
  1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  東京水産大学
Gravitational instantons and the topology of 4-dimensional manifoldsPrincipal Investigator
- Principal Investigator
  
  TSUBOI Kenji
- Project Period (FY)
  1987 – 1989
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Tokyo Univ. of Fisheries

All 2014 2009 2008 2006 2005 2004 2002 Other

All Journal Article Presentation Book

[Book] 数学入門II2004
- Author(s)
  上村豊, 坪井堅二
- Total Pages
  280
- Publisher
  東京化学同人
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14540067
[Journal Article] On the existence of K\″ahler metrics of constant scalar curvature2009
- Author(s)
  K. Tsuboi
- Journal Title
  
  Tohoku J. Math. (出版予定) 61-2
- NAID
  110007129526
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540066
[Journal Article] On the existence of Kahler metrics of constant scalar curvature2009
- Author(s)
  K. Tsuboi
- Journal Title
  
  to appear in Tohoku J. Math
  
  Pages: 61-2
- NAID
  110007129526
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540066
[Journal Article] On the rotation angles of a finite subgroup of amapping class group2008
- Author(s)
  K. Tsuboi
- Journal Title
  
  Proc. Japan Acad. Ser. A 84
  
  Pages: 184-185
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540066
[Journal Article] A fixed point formula for $0$-psudofree $S^1$-actionson Kahler manifolds of constant scalar curvature2008
- Author(s)
  K. Tsuboi
- Journal Title
  
  Tokyo J. Math. 31-2
  
  Pages: 541-550
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540066
[Journal Article] On the rotation angles of a finite subgroup of a mapping class group2008
- Author(s)
  K. Tsuboi
- Journal Title
  
  Proc. Japan Acad 84
  
  Pages: 184-185
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540066
[Journal Article] A fixed point formula for 0-psudofree S^1-actions on Kahler manifolds of constant scalar curvature2008
- Author(s)
  K. Tsuboi
- Journal Title
  
  Tokyo J. Math 31-2
  
  Pages: 541-550
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540066
[Journal Article] On the BCF-characters of complex manifolds with Kahler metrics of constant scalar curvature2006
- Author(s)
  K. Tsuboi
- Journal Title
  
  J.Tokyo Univ. Marine Science and Technology 2
  
  Pages: 19-27
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540066
[Journal Article] On the BCF-characters of complex manifolds with Kahler metrics of constant scalar curvature2006
- Author(s)
  K.Tsuboi
- Journal Title
  
  J. Tokyo Univ. of Marine Science and Technology 2
  
  Pages: 19-27
- Data Source
  KAKENHI-PROJECT-17540066
[Journal Article] The finite group action and the equivariant determinant of elliptic operators2005
- Author(s)
  K.Tsuboi
- Journal Title
  
  J.Math.Soc.Japan Vol.57
  
  Pages: 95-113
- NAID
  10016419658
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14540067
[Journal Article] The finite group action and the equivariant determinant of elliptic2005
- Author(s)
  K.Tsuboi
- Journal Title
  
  J.Math.Soc.Japan 57
  
  Pages: 95-113
- Data Source
  KAKENHI-PROJECT-14540067
[Journal Article] The equivariant determinant of elliptic operators and the group action2004
- Author(s)
  K.Tsuboi
- Journal Title
  
  Kokyuroku, RIMS, Kyoto Univ. 1387
  
  Pages: 150-158
- Data Source
  KAKENHI-PROJECT-14540067
[Journal Article] On the Einstein-Kahler Metric and the holonomy of a line bundle2002
- Author(s)
  K.Tsuboi
- Journal Title
  
  Proc. Edinburgh Math. Soc. vol.45
  
  Pages: 83-90
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14540067
[Journal Article] On the Einstein-Kahler metric and the holonomy of a line bundle,2002
- Author(s)
  K.Tsuboi
- Journal Title
  
  Proc.Edinburgh Math.Soc. Vol.45
  
  Pages: 83-90
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14540067
[Journal Article] A fixed point formula for compact complex manifolds2002
- Author(s)
  K.Tsuboi
- Journal Title
  
  J.Math.Kyoto Univ. Vol.42
  
  Pages: 1-20
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14540067
[Journal Article] On the BCF-characters of complex manifolds with Kahler metrics of constant scalar curvature.
- Author(s)
  K.Tsuboi
- Journal Title
  
  J.Tokyo Univ.of Marine Science and Technology (印刷中)
- Data Source
  KAKENHI-PROJECT-17540066
[Journal Article] A fixed point formula for O-pseudofree S^1-actions on Kahler Manifolds of constant scalar curvature
- Author(s)
  K. Tsuboi
- Journal Title
  
  Tokyo J. Math. (In press)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540066
[Presentation] ラプラシアンから楕円型作用素へ2014
- Author(s)
  坪井堅二
- Organizer
  服部先生研究集会
- Place of Presentation
  東京大学理学部数学科
- Year and Date
  2014-06-28
- Invited
- Data Source
  KAKENHI-PROJECT-25400084
[Presentation] On the Kahler classes containing Kahler metrics of constant scalar curvature2008
- Author(s)
  K.Tsuboi
- Organizer
  第14回複素幾何国際シンポジウム
- Place of Presentation
  長野県上田市ホテルゾンタック
- Year and Date
  2008-10-25
- Data Source
  KAKENHI-PROJECT-17540066
[Presentation] Finite transformation groups and the equivariant determinant of elliptic operators.2008
- Author(s)
  Kenji Tsuboi
- Organizer
  第35回変換群論シンポジウム
- Place of Presentation
  岡山県立図書館
- Year and Date
  2008-11-11
- Data Source
  KAKENHI-PROJECT-17540066
[Presentation] Finite transformation groups and the equivariant determinant of elliptic operators2008
- Author(s)
  K.Tsuboi
- Organizer
  第35回変換群論シンポジウム
- Place of Presentation
  岡山県立図書館
- Year and Date
  2008-11-11
- Data Source
  KAKENHI-PROJECT-17540066
[Presentation] On the Kahler classes containing K\″ahler metrics of constant scalar curvature2008
- Author(s)
  Kenji Tsuboi
- Organizer
  第14回複素幾何国際シンポジウム
- Place of Presentation
  長野県上田市ホテルソンタツク
- Year and Date
  2008-10-25
- Data Source
  KAKENHI-PROJECT-17540066

1. KAMIMURA Yutaka (50134854)

# of Collaborated Projects: 8 results

# of Collaborated Products: 1 results
2. FUTAKI Akito (90143247)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
3. IWASAKI Katsunori (00176538)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. HINO Yoshiyuki (70004405)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. SHIOTANI Nobuhira (30087415)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. HARAOKA Yoshishige (30208665)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. NAKASHIMA Kimie (10318800)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 上野上茂 (50022653)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

TSUBOI KENJI 坪井 堅二

TSUBOI Kenji 坪井 堅二

Research Projects

Research Products

Co-Researchers

THE GROUP ACTIONS ON MANIFOLDS AND THE EQUIVARIANT DETERMINANT OF ELLIPTIC OPERATORS.Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

The finite group action and the equivariant determinant of elliptic operatorsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Inverse Problems in Nonlinear Phenomena

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Kahler metrics of constant curvature on complex manifolds and topological invariantsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Nonlinear Inverse Problems and Singular Integral Equations

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Einstein metric on complex manifolds and the lifted Futaki invariantPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

An Inverse Bifurcation Problem and a generelization of Abel's equation

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

The determination of the nonlinear term by the bifurcating curve of a solution of a nonlinear boundary valne problemPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

微分作用素と多様体の幾何的構造Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Gravitational instantons and the topology of 4-dimensional manifoldsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Book] 数学入門II2004

Author(s)

Total Pages

Publisher

Description

Data Source

[Journal Article] On the existence of K\″ahler metrics of constant scalar curvature2009

Author(s)

Journal Title

NAID

Data Source

[Journal Article] On the existence of Kahler metrics of constant scalar curvature2009

Author(s)

Journal Title

NAID

TSUBOI KENJI 坪井堅二

TSUBOI Kenji 坪井堅二