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YOKOGAWA Koji  横川 光司

ORCIDConnect your ORCID iD *help
Researcher Number 40240189
Affiliation (Current) 2025: お茶の水女子大学, 基幹研究院, 教授
Affiliation (based on the past Project Information) *help 2007: Ochanomizu University, Graduate School of Humanities and Sciences, Professor
2006: お茶の水女子大学, 大学院人間文化研究科, 教授
2004 – 2005: Ochanomizu University, Faculty of Science, professor, 大学院・人間文化研究科, 教授
2004: お茶の水女子大学, 理学部, 教授
1996 – 2003: お茶の水女子大学, 理学部, 助教授
1992 – 1995: 大阪大学, 理学部, 助手
Review Section/Research Field
Principal Investigator
Algebra / Algebra
Except Principal Investigator
Algebra / Geometry / Geometry
Keywords
Principal Investigator
ベクトル束 / モジュライ / 非可換ホッジ理論 / ホモトピー / クリスタリン / 非可換コホモロジー / 代数幾何学 / ホッジ理論 / 有理性 / Vector bundle … More / Algebraic Geometry / Positive characteristic / Crystalline / Homotopy Mathematics / Non-abelian Hodge theory / Topology / Algebra / 正標数 / ホモトピー数学 / トポロジー / 代数学 / Non-abelian cohomology / Hodge theory / Moduli / Algebraic variety / Vecdtor bundle / 非可換コホモロジ- / スタック / 正標数の代数幾何 / 代数多様体 / 単体的ホモトピー / モデル理論 / 高次元圏 / クリスタリンホモトピー / 基本群 / D加群 / 非可換スキーム / 整数環 / 代数曲線 / パラボリック / フリップ / リーマン面 / 放物的ベクトル系 / ヒッグス束 / モヂュライ / 放物的ベクトル束 / 代数的ベクトル束 … More
Except Principal Investigator
Haefliger knot / Einstein計量 / 高次元knot / アーベル微分 / リーマン面 / 代数曲線 / Morley's theorem / localization / Einstein metric / Riemann surfaces / D-加群 / Morleyの定理 / 局所化 / Haefliger結び目 / Riemann面 / genus / combinatorial structure / Abelian differential / Riemann surface / 2次微分 / 結び目解消数 / 高次元結び目 / 種数 / 組み合せ構造 / Galois group / Division points / Elliptic curve / Abelian variety / Jacobian variety / Algebraic curve / ガロワ拡大 / 有理点群 / 等分方程式 / 超楕円曲線 / ガロワ群 / 等分点 / 楕円曲線 / アーベル多様体 / ヤコビ多様体 / Teichmueller space / vector bundle / Calabi-Yau variety / Hodge theory / Shafarevich map / Fano variety / flip / Minimal model / 射影空間 / フェルリンデ公式 / 基本群 / 極小モデル理論 / タイヒミューラー空間 / ベクトル束 / カラビ・ヤオ多様体 / ホッジ理論 / シャファレビッチ写像 / ファノ多様体 / フリップ / 極小モデル / 正則計量 / 線型計画法 / 準代数多様体 / ゼータ関数 / 3次元多様体 / 絡み目 / 結び目 / ブレイド群 / 表現論 / ホモロジー曲面 / 非完備代数曲面 / ジャコビアン予想 Less
  • Research Projects

    (13 results)
  • Research Products

    (2 results)
  • Co-Researchers

    (43 People)
  •  Non-abelian Hodge theory for positive characteristic and crystalline structuresPrincipal Investigator

    • Principal Investigator
      YOKOGAWA Koji
    • Project Period (FY)
      2005 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Ochanomizu University
  •  Combinatorial structures on Riemann surfaces and topological properties of the moduli space

    • Principal Investigator
      KIYOSHI Ohba
    • Project Period (FY)
      2005 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Ochanomizu University
  •  クリスタリン非可換ホッジ理論の研究Principal Investigator

    • Principal Investigator
      横川 光司
    • Project Period (FY)
      2002 – 2004
    • Research Category
      Grant-in-Aid for Exploratory Research
    • Research Field
      Algebra
    • Research Institution
      Ochanomizu University
  •  Combinatorial structures on Riemann surfaces and topological properties of the moduli space.

    • Principal Investigator
      OHBA Kiyoshi
    • Project Period (FY)
      2002 – 2004
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Ochanomizu University
  •  Research on non-abelian Hodge structures of algebraic varietiesPrincipal Investigator

    • Principal Investigator
      YOKOGAWA Koji
    • Project Period (FY)
      1999 – 2001
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Ochanomizu University
  •  整数環上の非可換ホッジ理論Principal Investigator

    • Principal Investigator
      横川 光司
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Encouragement of Young Scientists (A)
    • Research Field
      Algebra
    • Research Institution
      Ochanomizu University
  •  放物的ヒッグス束とそのモヂュラス多様体Principal Investigator

    • Principal Investigator
      横川 光司
    • Project Period (FY)
      1996
    • Research Category
      Grant-in-Aid for Scientific Research on Priority Areas
    • Research Institution
      Ochanomizu University
  •  放物的ヒッグス束とそのモヂュラス多様体Principal Investigator

    • Principal Investigator
      横川 光司
    • Project Period (FY)
      1995
    • Research Category
      Grant-in-Aid for Encouragement of Young Scientists (A)
    • Research Field
      Algebra
    • Research Institution
      Osaka University
  •  代数多様体の構造と位相の研究ジャコビアン予想の解決に向けて

    • Principal Investigator
      宮西 正宣
    • Project Period (FY)
      1994
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Osaka University
  •  ブレイド群の表現論

    • Principal Investigator
      MURAKAMI Jun
    • Project Period (FY)
      1994
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Osaka University
  •  準代数多様体分類の計画法への応用

    • Principal Investigator
      TSUNODA Shuichiro
    • Project Period (FY)
      1994
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Osaka University
  •  Arithmetics on Jacobian Varieties

    • Principal Investigator
      YAMAMOTO Yoshihiko
    • Project Period (FY)
      1994 – 1995
    • Research Category
      Grant-in-Aid for General Scientific Research (B)
    • Research Field
      Algebra
    • Research Institution
      Osaka University
  •  Higher Dimensional Algebraic Varieties

    • Principal Investigator
      MORI Shigefumi
    • Project Period (FY)
      1992 – 1993
    • Research Category
      Grant-in-Aid for international Scientific Research
    • Research Institution
      Kyoto University

All 2002

All Journal Article

  • [Journal Article] Pre-Tango structures on curves2002

    • Author(s)
      横川 光司
    • Journal Title

      Tohoku Mathematical Journal 54

      Pages: 227-237

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540068
  • [Journal Article] Pre-Tango structures on curves2002

    • Author(s)
      Koji Yokogawa
    • Journal Title

      Tohoku Mathematical Journal 54

      Pages: 227-237

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14540068
  • 1.  OHBA Kiyoshi (80242337)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 0 results
  • 2.  宮西 正宣 (80025311)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 0 results
  • 3.  USUI Sampei (90117002)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 0 results
  • 4.  KONNO Kazuhiro (10186869)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 5.  MURAKAMI Jun (90157751)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 6.  川中 宣明 (10028219)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 7.  TSUNODA Shuichiro (60144424)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 8.  HASHIMOTO Yoshitake (20271182)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 9.  難波 誠 (60004462)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 10.  坂根 由昌 (00089872)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 11.  MORI Shigefumi (00093328)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 12.  HAYAKAWA Takayuki (20198823)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 13.  MUKAI Shigeru (80115641)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 14.  MORIWAKI Atsushi (70191062)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 15.  SUGIE Toru (90135509)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 16.  MARUYAMA Masaki (50025459)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 17.  SAITO Masahiko (80183044)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 18.  UENO Kenji (40011655)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 19.  SAITO Morihiko (10186968)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 20.  SAITO Kyoji (20012445)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 21.  KOBAYASHI Masanori (60234845)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 22.  FUJITA Takao (40092324)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 23.  TSUJI Hajime (30172000)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 24.  MIYAOKA Yoichi (50101077)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 25.  OGUISO Keiji (40224133)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 26.  NAKAYAMA Noboru (10189079)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 27.  KAWAMATA Yujiro (90126037)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 28.  ISHIDA Masanori (30124548)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 29.  YAMAMOTO Yoshihiko (90028184)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 30.  OGAWA Hiroyuki (70243160)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 31.  KIYOKAZU Nagatomo (90172543)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 32.  HIRAMINE Yutaka (30116173)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 33.  MATSUMURA Akitaka (60115938)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 34.  TAKEDA Yoshihumi (50227039)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 35.  和久井 道久 (60252574)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 36.  宇野 勝博 (70176717)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 37.  鈴木 譲 (50216397)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 38.  川中子 正 (20214661)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 39.  田辺 広城 (70028083)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 40.  CLEMENS Herb
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 41.  KOLLAR Janos
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 42.  HERB Clemens
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 43.  JANOS Kollar
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results

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