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OKUMURA Masafumi  奥村 正文

ORCIDConnect your ORCID iD *help
Researcher Number 60016053
Affiliation (based on the past Project Information) *help 1986 – 2001: 埼玉大学, 理学部, 教授
2000: Saitama University, Dept. of Math., Professor
1994: 埼玉大学, 教授
1991: 埼玉大学, 理学部数学, 教授
Review Section/Research Field
Principal Investigator
代数学・幾何学 / Geometry
Except Principal Investigator
Geometry / 解析学 / 代数学・幾何学 / Algebra
Keywords
Principal Investigator
MHD-作用素 / 有理突点曲線 / 正規曲面 / 特性類 / 葉層構造 / 実部分多様体 / 複数射影空間 / Kodaira dimension / minimal hypersurface / First normal space … More
Except Principal Investigator
… More 特異点 / ディラック作用素 / 葉層構造 / 代数曲面 / Spin / Dirac operator / generalized divergence / Schouten bracket / 断熱極限 / スピン構造 / 平面曲線 / Leibniz cohomology / Leibniz algebra / Concircular scalar field / twistor / トウィスター / スピン / leaf invariant / symplectic foliation / Poisson cohomology / contact structure / Poisson manifold / 巡回被覆 / Bellman方程式 / エータ不変量 / ゼータ関数 / 擬微分作用素 / 指数定理 / 射影空間 / 複素射影空間 / chiral anomaly / 四元数 / カイラルアノマリー / Pfaff system / singular foilation / central extension / Nambu-Poisson manifold / 南部・ヤコビブラケット / ポアソン・ブラケット / 南部多様体 / Fundamental Identity / Nambu-Jacobi多様体 / ヤコビ多様体 / ポアソン多様体 / Nambu-Poisson多様体 / パフ系 / 特異葉層構造 / 中心拡大 / Nambu-Possin多様体 / Variational problem / normal curvature tensor / Willmore surface / Simon conjecture / Minimal surface / ガウス曲率 / 曲率 / 楕円関数 / 変分問題 / 法曲率テンソル / Willmore曲面 / Simon予想 / 極小曲面 / analytic torsion / Seiberg-Witten / eta invariant / signature operator / adiabatic limit / 解析的トーション / サイバーグ・ウィッテン / 指数作用素 / Dirac manifold / Hirsch foliation / maximal multiplicity / projective equivalence / place at infinity / quadratic transformation / multiplicity sequence / cuspidal curve / rational curve / plane curve / 有理尖点曲線 / 変形 / 重複度 / 特異点解消 / 有理関数 / 環と体 / 重複度列 / 2次変換 / クレモナ変換 / 尖点 / 有理曲線 / 総ミルナー数 / singularity / Prehomogenous / Zeta function / ベルアン方程式 / CR部分多様体 / セキュリティー / ミルナ-数 / デジタル署名 / b関数 / 概均質ベクトル空間 / foliation / monifold / modular group / projective space / singularities / algebraic surface / Betti number / cyclic covering / 概接触構造 / 量子束 / 4元数 / 葉層 / 多様体 / モジュラー群 / ベッチ数 / 双曲型偏微分方程式 / コントロール / 固有値問題 / フィードバック / ロボット / ルールド構造 / サイクリックコホモロジー / 部分多様体 / 磁気面 / 有限要素法 / 体質的スペクトル / 線形化MHD作用素 / 磁気流体 / ジュヴレー級関数 / ジュヴレー準楕円型微分作用素 / 構造ベクトル場 / 等質な超曲面 / 球面に等長 / 無限小特殊共円変換 / ケーラー多様体 / 粘性解 / 最適制御問題 / CR多様体 / 局所可解性 / 解析的準楕円性 / Symplectic characteristic / 増大度 / スカラー曲率 / トウィスター構造 / spin^q structure / addiabatic limit / η-invariant / twistor space / quarternionic symplectic / シンプレクティック構造 / twistor構造 / Spin^q構造 / Dirac作用素 / 付値 / モジュライ / 射影空間の超曲面 / 特異性の伝播 / 偏微分方程式の局所可解性 / 四元数スピン構造 / 複素スピン構造 / 超局所(microlral) / 概均質(prehomogeneouo) / 指数 / ガウス・ボンネ作用素 / L^2コホモロジ- / Shape Operator / 二次特性類 / K3曲面 / 代数多様体 / 線型MHD作用素 / ドラ-ムの定理 / ヤコビ形式 / 数論的代数曲面 / 数論的不連続群 Less
  • Research Projects

    (24 results)
  • Co-Researchers

    (24 People)
  •  Global Research of Geometry related with Poisson and Contact Manifolds.

    • Principal Investigator
      MIZUTANI Tadayoshi
    • Project Period (FY)
      1999 – 2001
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Saitama University
  •  Spin^q structures and the adiabatic limit

    • Principal Investigator
      NAGASE Masayoshi
    • Project Period (FY)
      1999 – 2001
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Saitama University
  •  Studies on minimal surfaces and Simon conjecture

    • Principal Investigator
      SAKAMOTO Kunio
    • Project Period (FY)
      1998 – 2000
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Saitama University
  •  Algebraic Geometry of Plane Curves

    • Principal Investigator
      SAKAI Fumio
    • Project Period (FY)
      1997 – 2000
    • Research Category
      Grant-in-Aid for Scientific Research (B).
    • Research Field
      Algebra
    • Research Institution
      Saitama University
  •  Research on Poisson manifolds and related structures on manifolds.

    • Principal Investigator
      MIZUTANI Tadayoshi
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Saitama University
  •  Research on the global structure of manifold

    • Principal Investigator
      NAGASE Masayoshi
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Saitama University
  •  多様体の大域幾何の研究

    • Principal Investigator
      長瀬 正義
    • Project Period (FY)
      1996
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Saitama University
  •  偏微分方程式の局所および大域解析

    • Principal Investigator
      櫻井 力
    • Project Period (FY)
      1996
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Saitama University
  •  The study of the pole of the zeta function.

    • Principal Investigator
      YANO Tamaki
    • Project Period (FY)
      1996 – 1997
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Saitama University
  •  多様体における種々の大域的構造の研究

    • Principal Investigator
      水谷 忠良
    • Project Period (FY)
      1995
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Saitama University
  •  On Birational Geometry of Algebraic Varieties

    • Principal Investigator
      SAKAI Fumio
    • Project Period (FY)
      1995 – 1996
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Algebra
    • Research Institution
      Saitama University
  •  代数多様体の分類

    • Principal Investigator
      酒井 文雄
    • Project Period (FY)
      1994
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Saitama University
  •  多様体の大域的構造の研究

    • Principal Investigator
      長瀬 正義
    • Project Period (FY)
      1994
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Saitama University
  •  多様体の総合的研究Principal Investigator

    • Principal Investigator
      奥村 正文
    • Project Period (FY)
      1993
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Saitama University
  •  多様体の大域的構造の研究

    • Principal Investigator
      長瀬 正義
    • Project Period (FY)
      1992
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Saitama University
  •  偏微分方程式の解の構造の研究

    • Principal Investigator
      SAKURAI Tsutomu
    • Project Period (FY)
      1992
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Saitama University
  •  多様体の幾何学的構造の研究

    • Principal Investigator
      水谷 忠良
    • Project Period (FY)
      1991
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Saitama University
  •  概均質空間の構造の研究とその応用

    • Principal Investigator
      矢野 環
    • Project Period (FY)
      1991
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Saitama University
  •  代数多様体の構造

    • Principal Investigator
      SAKAI Fumio
    • Project Period (FY)
      1990
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Saitama University
  •  数論的不連続群の研究

    • Principal Investigator
      TAKEUCHI Kisao
    • Project Period (FY)
      1989
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Saitama University
  •  多様体の総合的研究Principal Investigator

    • Principal Investigator
      奥村 正文
    • Project Period (FY)
      1988
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Saitama University
  •  システム理論の数学的研究

    • Principal Investigator
      辻岡 邦夫
    • Project Period (FY)
      1988
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Saitama University
  •  微分方程式の解の構造の研究とその応用

    • Principal Investigator
      加古 孝
    • Project Period (FY)
      1987
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Saitama University
  •  表現論の総合的研究

    • Principal Investigator
      宮崎 功
    • Project Period (FY)
      1986
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Saitama University
  • 1.  NAGASE Masayoshi (30175509)
    # of Collaborated Projects: 16 results
    # of Collaborated Products: 0 results
  • 2.  MIZUTANI Tadayoshi (20080492)
    # of Collaborated Projects: 14 results
    # of Collaborated Products: 0 results
  • 3.  SAKAI Fumio (40036596)
    # of Collaborated Projects: 13 results
    # of Collaborated Products: 0 results
  • 4.  TAKEUCHI Kisao (00011560)
    # of Collaborated Projects: 10 results
    # of Collaborated Products: 0 results
  • 5.  辻岡 邦夫 (30012412)
    # of Collaborated Projects: 6 results
    # of Collaborated Products: 0 results
  • 6.  YANO Tamaki (10111410)
    # of Collaborated Projects: 6 results
    # of Collaborated Products: 0 results
  • 7.  木村 真琴 (30186332)
    # of Collaborated Projects: 6 results
    # of Collaborated Products: 0 results
  • 8.  SAKAMOTO Kunio (70089829)
    # of Collaborated Projects: 6 results
    # of Collaborated Products: 0 results
  • 9.  FUKUI Toshizumi (90218892)
    # of Collaborated Projects: 5 results
    # of Collaborated Products: 0 results
  • 10.  SATOH Takakazu (70215797)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 0 results
  • 11.  加古 孝 (30012488)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 0 results
  • 12.  金銅 誠之 (50186847)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 0 results
  • 13.  KOIKE Shigeaki (90205295)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 0 results
  • 14.  SAKURAI Tsutomu (40187084)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 0 results
  • 15.  佐藤 祐吉 (80008812)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 0 results
  • 16.  EGASHIRA Shinji (00261876)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 0 results
  • 17.  西宮 範 (50008794)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 18.  柴田 勝征 (50028213)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 19.  柳井 久江 (10008865)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 20.  宮崎 功 (80008797)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 21.  夏目 利一 (00125890)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 22.  EBIHARA Madoka (80213578)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 23.  GON Yasuro (30302508)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 24.  ARAI Michio (40008850)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results

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