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対称空間の双対性に基づくケーラー・アインシュタイン計量の構成とその漸近解析

Research Project

Project/Area Number 20654008
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Geometry
Research InstitutionNagoya University

Principal Investigator

小林 亮一  名古屋大学, 多元数理科学研究科, 教授 (20162034)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2010: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2009: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2008: ¥800,000 (Direct Cost: ¥800,000)
KeywordsBourgignon-Yau写像 / 余随伴軌道 / リッチフラットケーラー計量 / 群作用 / 余等質次元 / アインシュタン計量 / リッチフロー / リッチ平坦 / 凸曲面 / 疑凸領域 / スケール極限 / 代数的極小曲面 / Cohn-Vossen不等式 / Nevanlinna理論 / 周期条件 / 対数微分の補題 / 横断的アインシュタイン計量 / 横断的リッチ流 / 4元数ケーラー多様体
Research Abstract

1.Biliotti-GhigiはBourguignon-Yau写像を用いて余随伴軌道の凸包を記述した.これはあるタイプの非コンパクト型対称空間の自然なコンパクト化を与える.これはあるタイプのコンパクト対称空間を複素化して得られるアファイン代数多様体(対称多様体とよぶ)の標準的なexhaustionを定義する.このように考えると,Biliotti-Ghigiの構成は任意のタイプの非コンパクト型対称空間のコンパクト化に拡張されることが分かり,canonical exhaustionは標準的なexhaustion関数を定義することが分かる.これは,非コンパクト対称空間の不変計量を拡大することによって得られるstrictly psh exhaustion functionのscaling limitである.こうして対称多様体のcanonical exhaustion functionが定義されるが,これが完備リッチフラットケーラー計量になると予想する.この予想が得られたことが,この研究の最大の成果である.

Report

(3 results)
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (17 results)

All 2011 2010 2009 2008 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (6 results) Book (1 results) Remarks (5 results)

  • [Journal Article] The Gauss map of pseudo-algebraic minimal surfaces2009

    • Author(s)
      Y.Kawakami, R.Kobayashi, R.Mitaoka
    • Journal Title

      Forum Math. 20-6

      Pages: 225-247

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Toward Nevanlinna-Galois Theory of algebraic minimal surfaces2009

    • Author(s)
      R.Kobayashi
    • Journal Title

      OCAMI Studies Proc. 16^<th> Intern. Symp. 3

      Pages: 129-136

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Gauss map of pseudo-algebraic minimal surfaces2008

    • Author(s)
      R. Kobayashi, Y. Kawakami, R. Miyaoka
    • Journal Title

      Forum Mathematicum 20-6

      Pages: 1055-1069

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 対数Sobolev不等式, エントロピー公式, Riemann幾何的熱浴・・PerelmanによるRicci flowへのアプローチ I, II2008

    • Author(s)
      小林亮一
    • Journal Title

      数学 60-3, 60-4

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Transversal Ricci flow unstable cell centered at a transversal Einstein metric on the twistor space of positive quaternion K\"ahler manifolds2008

    • Author(s)
      R. Kobayashi
    • Journal Title

      Lecture Note Series in Mathematics, Osaka University 9

      Pages: 31-52

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Asymptotically conical Kaehler metrics with a condition on Ricci curvature and applications2010

    • Author(s)
      Ryoichi Kobayashi
    • Organizer
      16-th international symposium on complex geometry
    • Place of Presentation
      菅平
    • Year and Date
      2010-10-22
    • Related Report
      2010 Annual Research Report
  • [Presentation] Nevanlinna-Galois theory of algebrain minimal surfaces2010

    • Author(s)
      Ryoichi Kobayashi
    • Organizer
      福岡大学微分幾何セミナー2010
    • Place of Presentation
      福岡大学
    • Year and Date
      2010-10-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Asymptotically conical Ricci-flat Kaehler metrics on affine algebraic manifolds2010

    • Author(s)
      Ryoichi Kobayashi
    • Organizer
      6 th Geometry Conference for friendship between China and Japan
    • Place of Presentation
      Xi'an, China
    • Year and Date
      2010-09-06
    • Related Report
      2010 Annual Research Report
  • [Presentation] Asymptotically conical Ricci-flat Kaehler metrics on affine algebraic manifolds2010

    • Author(s)
      Ryoichi Kobayashi
    • Organizer
      5 th Pacific Rim Complex and Stmplectic Geometry
    • Place of Presentation
      名古屋-伊勢
    • Year and Date
      2010-07-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] Nevanlinna-Galois theory for algebraic minimal surfaces2009

    • Author(s)
      R.Kobayashi,
    • Organizer
      XXIst Rolf Nevanlinna Colloquium
    • Place of Presentation
      Kyoto University
    • Related Report
      2009 Annual Research Report
  • [Presentation] Period Condition of Algebraic minimal. Surfaces and Nesvanlinna Theory2008

    • Author(s)
      Ryoichi Kobayashi
    • Organizer
      Riemann Surfaces, Harmonic Maps and Visualizat
    • Place of Presentation
      大阪市立大学
    • Related Report
      2008 Annual Research Report
  • [Book] リッチフローと幾何化予想2011

    • Author(s)
      小林亮一
    • Publisher
      培風館
    • Related Report
      2010 Annual Research Report
  • [Remarks] arXiv:0801.2605

    • Related Report
      2009 Annual Research Report
  • [Remarks] arXiv:math/0801. 2605[math. DG]

    • Related Report
      2008 Annual Research Report
  • [Remarks] arXiv:math/0511643[math. DG]

    • Related Report
      2008 Annual Research Report
  • [Remarks] arXiv:math/0507489[math. DG]

    • Related Report
      2008 Annual Research Report
  • [Remarks] arXiv:math/0805. 1956[math. DG]

    • Related Report
      2008 Annual Research Report

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

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