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Local torus actions on Lagrangian fibrations

Research Project

Project/Area Number 20740029
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Geometry
Research InstitutionMeiji University

Principal Investigator

YOSHIDA Takahiko  Meiji University, 研究・知財戦略機構, 研究員 (70451903)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywordsディラック型作用素 / 指数 / 局所化 / ラグランジュファイバー束 / 幾何学的量子化 / シンプレクティック幾何 / 幾何学 / トポロジー / 数理物理
Research Abstract

前量子化束を持つ特異Lagrangeファイバー束について,Riemann-Roch数がBohr-Sommerfeldファイバーの個数と一致する現象がさまざまな事例で報告されている.この現象が起こるメカニズムを解明するため,Witten摂動に基づく指数の局所化の観点から研究を行い,以下の成果を得た.
1 開多様体上のDirac型作用素に対して指数を定式化する枠組みを与え,その指数に対して局所化定理を証明した.
2 その応用として,前量子化束を許容する特異Lagrangeファイバー束について,Riemann-Roch数が非特異Bohr-Sommerfeldファイバーの個数と特異ファイバーからの寄与で表せることを証明した.

Report

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

    (34 results)

All 2010 2009 2008 Other

All Journal Article (7 results) (of which Peer Reviewed: 5 results) Presentation (26 results) Remarks (1 results)

  • [Journal Article] Torus fibrations and localization of index II2009

    • Author(s)
      藤田玄, 古田幹雄, 吉田尚彦
    • Journal Title

      UTMS Preprint Series 2009-21

      Pages: 64-64

    • URL

      http://kyokan.ms.u-tokyo.ac.jp/user

    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Journal Article] On manifolds which are locally modeled on the standard representation of a torus, Noncommutativity and Singularities2009

    • Author(s)
      吉田尚彦
    • Journal Title

      Adv. Stud. Pure Math., Math. Soc. Japan, Tokyo 55

      Pages: 353-363

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] On manifolds which are locally modeled on the standard representation of a torus2009

    • Author(s)
      吉田尚彦
    • Journal Title

      Advanced Studies in Pure Mathematics, Mathematical Society of Japan 55

      Pages: 353-363

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On liftings of local torus actions to fiber bundles, Toric Topology2008

    • Author(s)
      吉田尚彦
    • Journal Title

      Contemp. Math., Amer. Math. Soc., Providence, RI 460

      Pages: 391-401

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Acyclic polarizations and localization of Riemann-Roch numbers I2008

    • Author(s)
      Hajime Fujita, Mikio Furuta, Takahiko Yoshida
    • Journal Title

      UTMS Preprint Series 12

      Pages: 1-22

    • Related Report
      2008 Annual Research Report
  • [Journal Article] On liftings of local torus actions to fiber bundles2008

    • Author(s)
      Takahiko Yoshida
    • Journal Title

      Toric Topology, Contemp.Math., Amer. Math. Soc 460

      Pages: 391-401

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Torus fibrations and localization of index I

    • Author(s)
      藤田玄, 古田幹雄, 吉田尚彦
    • Journal Title

      J. Math. Sci.(Univ. Tokyo) (に掲載予定)

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Presentation] RR=#BS via localization of index, 連続講演(全7回), KAIST Toric Topology Workshop 20102010

    • Author(s)
      吉田尚彦
    • Organizer
      KAIST
    • Place of Presentation
      Daejeon, Korea
    • Related Report
      2009 Final Research Report
  • [Presentation] RR=#BS via locahzation of index2010

    • Author(s)
      吉田尚彦
    • Organizer
      KAIST Toric Topology Workshop 2010
    • Place of Presentation
      KAIST(太田,韓国)(連続講演:1時間×7回)
    • Related Report
      2009 Annual Research Report
  • [Presentation] Torus fibrations and localization of index2009

    • Author(s)
      吉田尚彦
    • Organizer
      第36回変換群論シンポジウム
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2009-12-10
    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Presentation] Torus fibrations and localization of index2009

    • Author(s)
      吉田尚彦
    • Organizer
      トポロジー火曜セミナー
    • Place of Presentation
      東京大学
    • Year and Date
      2009-10-20
    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Presentation] Torus fibrations and localization of index2009

    • Author(s)
      吉田尚彦
    • Organizer
      量子化の幾何2009
    • Place of Presentation
      早稲田大学
    • Year and Date
      2009-09-17
    • Related Report
      2009 Final Research Report
  • [Presentation] Torus fibrations and localization of index2009

    • Author(s)
      吉田尚彦
    • Organizer
      量子化の幾何学2009
    • Place of Presentation
      早稲田大学
    • Year and Date
      2009-09-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] Torus fibrations and localization of index2009

    • Author(s)
      吉田尚彦
    • Organizer
      3rd International Conference on Geometry and Quantization
    • Place of Presentation
      the University of Luxembourg (Luxembourg)
    • Year and Date
      2009-09-08
    • Related Report
      2009 Final Research Report
  • [Presentation] Torus fibrations and localization of index2009

    • Author(s)
      吉田尚彦
    • Organizer
      International Conference on Geometry and Quantization
    • Place of Presentation
      University of Luxembourg(Luxembourg)
    • Year and Date
      2009-09-08
    • Related Report
      2009 Annual Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2009

    • Author(s)
      吉田尚彦
    • Organizer
      微分幾何学セミナー
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2009-06-10
    • Related Report
      2009 Final Research Report
  • [Presentation] Acyclic polarizations and locahzation of Riemann-Roch numbers2009

    • Author(s)
      吉田尚彦
    • Organizer
      微分幾何学セミナー
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2009-06-10
    • Related Report
      2009 Annual Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2009

    • Author(s)
      吉田尚彦
    • Organizer
      Topology from infinite dimensional viewpoint
    • Place of Presentation
      鳥取環境大学
    • Year and Date
      2009-02-25
    • Related Report
      2009 Final Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2009

    • Author(s)
      吉田尚彦
    • Organizer
      研究集会「Topology from infinitedimensional viewpoint」
    • Place of Presentation
      鳥取環境大学
    • Year and Date
      2009-02-25
    • Related Report
      2008 Annual Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2009

    • Author(s)
      吉田尚彦
    • Organizer
      微分幾何学とトポロジーセミナー
    • Place of Presentation
      慶応義塾大学
    • Year and Date
      2009-01-19
    • Related Report
      2009 Final Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2009

    • Author(s)
      吉田尚彦
    • Organizer
      微分幾何・トポロジーセミナー
    • Place of Presentation
      慶応義塾大学
    • Year and Date
      2009-01-19
    • Related Report
      2008 Annual Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers II2008

    • Author(s)
      吉田尚彦
    • Organizer
      Geometry Seminar
    • Place of Presentation
      国立成功大学, 台湾
    • Year and Date
      2008-12-31
    • Related Report
      2008 Annual Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      Geometry seminar
    • Place of Presentation
      National Cheng Kung University (Tainan, Taiwan)
    • Year and Date
      2008-12-30
    • Related Report
      2009 Final Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers I2008

    • Author(s)
      吉田尚彦
    • Organizer
      研究集会「Fujisan one-day worksh。p onGeometry and Topology」
    • Place of Presentation
      国立成功大学, 台湾
    • Year and Date
      2008-12-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      Fujisan one-day workshop in Geometry and Topology
    • Place of Presentation
      National Cheng Kung University (Tainan, Taiwan)
    • Year and Date
      2008-12-26
    • Related Report
      2009 Final Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      Ikuta International Workshop on Symplectic Geometry
    • Place of Presentation
      明治大学
    • Year and Date
      2008-12-11
    • Related Report
      2009 Final Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      研究集会「lkuta International Workshop on Symplectic Geometry-」
    • Place of Presentation
      明治大学
    • Year and Date
      2008-12-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      東京幾何セミナー
    • Place of Presentation
      東京大学
    • Year and Date
      2008-12-10
    • Related Report
      2009 Final Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      東京幾何セミナー
    • Place of Presentation
      東京大学大学院数理科学研究科
    • Year and Date
      2008-12-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      日本数学会2008年度秋季総合分科会・幾何学分科会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2008-09-25
    • Related Report
      2009 Final Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      日本数学会2008年度秋季総合分科会・幾何分科会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2008-09-25
    • Related Report
      2008 Annual Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      ポスター発表, New Horizons in Toric Topology
    • Place of Presentation
      University of Manchester (Manchester, UK)
    • Related Report
      2009 Final Research Report
  • [Presentation] Acyclic polarizations and localization of Riemann-Roch numbers2008

    • Author(s)
      吉田尚彦
    • Organizer
      New Horizons in Toric Topology
    • Place of Presentation
      University of Manchester, UK
    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.math.meiji.ac.jp/~takahiko/

    • Related Report
      2009 Final Research Report

URL: 

Published: 2008-04-01   Modified: 2016-04-21  

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