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Geometrtic structures defined by differential forms (Topological Calibrations)

Research Project

Project/Area Number 19540079
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Geometry
Research InstitutionOsaka University

Principal Investigator

GOTO Ryushi  Osaka University, 大学院・理学研究科, 准教授 (30252571)

Co-Investigator(Kenkyū-buntansha) FUJIKI Akira  大阪大学, 大学院・理学研究科, 教授 (80027383)
MABUCHI Toshiki  大阪大学, 大学院・理学研究科, 教授 (80116102)
NAMIKAWA Yoshinori  京都大学, 大学院・理学研究科, 教授 (80228080)
FUKAYA Kenji  京都大学, 大学院・理学研究科, 教授 (30165261)
YOSHIKAWA Kenichi  京都大学, 大学院・理学研究科, 教授 (20242810)
Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsカラビーヤオ多様体 / 変形理論 / 一般化された幾何構造 / 双エルミート構造 / 一般化されたケーラー構造 / ポアソン構造 / リッチ平坦計量 / アインシュタイン-佐々木多様体 / 一般化された複素構造 / 超ケーラー多様体 / アインシュタインー佐々木多様体 / 幾何構造 / 一般化された複素多様体 / ポアソン多様体
Research Abstract

We obtain the following two results:
(1) Constructions of generalized Kaehler structures and unobstructed deformations
We established the stability theorem of generalized Kahler structure and constructed many interesting examples. As an application, we showed that there exists a non-trivial bihermitian structure on compact Kahler surface with non-zero holomorphic Poisson structure.
(2) Calabi-Yau structures on non-compact Kahler manifolds
We showed that there is a Ricci-flat complete kahler metric on each Kahler class of a crepant resolution of normal isolated singularity which is the cone of an Einstein-Sasaki manifold.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (18 results)

All 2009 2008 2007

All Journal Article (12 results) (of which Peer Reviewed: 7 results) Presentation (6 results)

  • [Journal Article] Poisson structures and generalized Kahler submanifolds2009

    • Author(s)
      R. Goto
    • Journal Title

      J. Math. Soc. Japan 61,1

      Pages: 107-132

    • NAID

      10024905527

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Deformations of Generalized Kahler Structures and Bihermitian Structures2009

    • Author(s)
      R. Goto
    • Journal Title

      ArXiv上に発表, arXiv:0910. 1651

      Pages: 39-39

    • Related Report
      2009 Final Research Report
  • [Journal Article] Unobstructed K-deformations of Generalized complex Structures and Bihermitian Structures2009

    • Author(s)
      R. Goto
    • Journal Title

      ArXiv上に発表arXiv:0911. 2958

    • Related Report
      2009 Final Research Report
  • [Journal Article] Calabi-Yau structures and Einstein-Sasakian structures on crepant resolutions of isolated singularities2009

    • Author(s)
      R. Goto
    • Journal Title

      ArXiv上に発表, arXiv:0906. 5191 45

    • NAID

      10031177259

    • Related Report
      2009 Final Research Report
  • [Journal Article] Anti-self-dual bihermitian structures on Inoue surfaces2009

    • Author(s)
      A. Fujiki, M. Pontecorvo
    • Journal Title

      arXiv:09031320, to appear in J. Diff. Geometry.

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Characteristic foliation on the discriminantal hypersurface of a holomorphic Lagrangian fibration2009

    • Author(s)
      K. Oguiso, Jun-Muk Hwang
    • Journal Title

      American J. Math. 131

      Pages: 981-1008

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] The geometry of fronts2009

    • Author(s)
      M. Umehara K. Saji, K. Yamada
    • Journal Title

      Ann. of Math. 169

      Pages: 91-529

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Poisson structures and Generalized Kaehier structures2009

    • Author(s)
      Ryushi Goto
    • Journal Title

      Journal of Math. Soc. Japan 61

      Pages: 107-132

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Poisson structures and Generalized K\"ahler structures2009

    • Author(s)
      Ryushi Goto
    • Journal Title

      Journal of Math. Soc. Japan 61

      Pages: 107-132

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bimeromorphic automorphism groups of non-projective hyperkahler manifolds-a note inspired by C.T. McMullen J.2008

    • Author(s)
      K. Oguiso
    • Journal Title

      Differential Geometry 78

      Pages: 163-191

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Deformations of generalized complex and generalized Kahler structures2007

    • Author(s)
      R. Goto
    • Journal Title

      ArXiv上に発表, arXiv:0705. 2495 36

    • Related Report
      2009 Final Research Report
  • [Journal Article] 正則シンプレクティック構造と一般化された幾何構造の変型について2007

    • Author(s)
      R. Goto
    • Journal Title

      数理解析研究所講究録, 1527 (部分多様体論のさらなる発展にむけて= For further advance of the submanifold theory) 1527

      Pages: 1-28

    • Related Report
      2009 Final Research Report
  • [Presentation] Generalized Kahler geometry and Holomorphic Poisson structures2009

    • Author(s)
      R. Goto
    • Organizer
      Sminaire de geometrie et topologie Universite du Quebec a Montreal UQAM
    • Place of Presentation
      カナダ, ケベック州
    • Year and Date
      2009-04-17
    • Related Report
      2009 Final Research Report
  • [Presentation] Holomorphic Poisson structures and deformations of generalized Kahler structure2009

    • Author(s)
      R. Goto, IPMU, Institute of the Physics, Mathematics of the Universe
    • Organizer
      Supersymmetry in complex geometry, generalized complex structures, generalized Kahler structures, symplectic and Hermitian structures on complex manifolds
    • Place of Presentation
      東京大学、東京都
    • Related Report
      2009 Final Research Report
  • [Presentation] Deformations of generalized Kahler structures, Poisson structures and bihermitian structures2008

    • Author(s)
      R. Goto
    • Organizer
      UK-Japan Winter School, Algebraic and Symplectic Geometry, Mathematics Research Centre, University of Warwick
    • Place of Presentation
      英国、ウオーリック
    • Year and Date
      2008-01-11
    • Related Report
      2009 Final Research Report
  • [Presentation] Deformations of generalized Kahler structures, Poisson structures and bihermitian structures2008

    • Author(s)
      R. Goto
    • Organizer
      Algebraic and Symplectic Geometry
    • Place of Presentation
      Warwick大学(英国)
    • Year and Date
      2008-01-11
    • Related Report
      2007 Annual Research Report
  • [Presentation] Deformations of generalized Kahler structures on holomorphic Poisson manifolds2008

    • Author(s)
      R. Goto
    • Organizer
      第4回日中友好幾何学会議
    • Place of Presentation
      Chern Institute of Mathematics, (陳数学研究所) Nankai University (南開大学), 中国
    • Related Report
      2009 Final Research Report
  • [Presentation] Deformations of generalized Kahler structures, Poisson structures, and generalized Kahler submanifolds"、Complex Geometry in Osaka2007

    • Author(s)
      R. Goto
    • Organizer
      藤木先生還暦記念研究集会
    • Place of Presentation
      大阪大学中之島センター, 大阪府
    • Year and Date
      2007-11-05
    • Related Report
      2009 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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