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Self-similar solutions of geometric flows and GIT stability

Research Project

Project/Area Number 25247003
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Geometry
Research InstitutionThe University of Tokyo

Principal Investigator

Futaki Akito  東京大学, 大学院数理科学研究科, 名誉教授 (90143247)

Project Period (FY) 2013-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥41,470,000 (Direct Cost: ¥31,900,000、Indirect Cost: ¥9,570,000)
Fiscal Year 2017: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2016: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2015: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2014: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2013: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Keywordsアインシュタイン計量 / ケーラー多様体 / Fano 多様体 / リッチ流 / リッチ・ソリトン / 平均曲率流 / 自己相似解 / 安定性 / 幾何学
Outline of Final Research Achievements

Geometric objects are curved spaces. I studied time-dependent deformations of such curved spaces satisfying differential equations. Usually singularities occur in finite time, and if we rescale the neighborhood of the singularities we arrive at the notion of self-similar solutions. During the research period of this fund I found the lower diameter bound of closed self-similar solution spaces, clarified the mechanism of the appearance of self-similar solutions on cone manifolds, and observed some properties of the limits of sequences of self-similar solutions.

Academic Significance and Societal Importance of the Research Achievements

相対性理論における重力場の方程式は幾何学の言葉ではアインシュタイン計量にあたるものである.アインシュタイン計量の果たす役割は現代物理学においても大きい.本研究の幾何学的流れはアインシュタイン計量などの微分方程式の解として記述される重要な対象を求めるための有力な手段である.解は常に存在するとは限らず,存在するための必要十分条件を記述することが我々の研究分野の目的である.いわば,どのような空間が宇宙たりうるか,という問いに答えを出そうということである.

Report

(6 results)
  • 2018 Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (36 results)

All 2018 2017 2016 2015 2014 2013 Other

All Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results) Presentation (20 results) (of which Int'l Joint Research: 11 results,  Invited: 20 results) Book (1 results) Remarks (1 results) Funded Workshop (4 results)

  • [Journal Article] Volume minimization and conformally Kähler, Einstein–Maxwell geometry2018

    • Author(s)
      Akito Futaki, Hajime Ono
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 70 Issue: 4 Pages: 1493-1521

    • DOI

      10.2969/jmsj/77837783

    • NAID

      130007501727

    • ISSN
      0025-5645, 1881-1167, 1881-2333
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fano-Ricci limit spaces and spectral convergence2017

    • Author(s)
      Akito Futaki, Shouhei Honda and Shunsuke Saito
    • Journal Title

      Asian Journal of Mathematics

      Volume: 21 Issue: 6 Pages: 1015-1062

    • DOI

      10.4310/ajm.2017.v21.n6.a2

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The weighted Laplacians on real and complex metric measure spaces, in Geometry and Analysis on Manifolds2015

    • Author(s)
      Akito Futaki
    • Journal Title

      Progress in Mathematics

      Volume: 308 Pages: 343-351

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Einstein metrics and GIT stability. II2015

    • Author(s)
      Akito Futaki and Hajime Ono
    • Journal Title

      Sugaku Expositions

      Volume: 28 Pages: 231-249

    • NAID

      10030741033

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preface2015

    • Author(s)
      T. Mabuchi, A. Futaki, Y. Miyaoka, J. Noguchi
    • Journal Title

      Internat. J. Math.

      Volume: 26 Issue: 04 Pages: 1-2

    • DOI

      10.1142/s0129167x15020012

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Self-similar solutions to the mean curvature flows on Riemannian cone manifolds and special Lagrangians on toric Calabi-Yau cones2014

    • Author(s)
      Akito Futaki, Kota Hattori and Hikaru Yamamoto
    • Journal Title

      Osaka J. Math.

      Volume: 51 Pages: 1053-1079

    • NAID

      120005986378

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ベクトル解析の力,巻頭言2014

    • Author(s)
      二木昭人
    • Journal Title

      数理科学

      Volume: 614 Pages: 4-5

    • Related Report
      2014 Annual Research Report
  • [Journal Article] Lower diameter bounds for compact shrinking Ricci solitons2013

    • Author(s)
      Akito Futaki and Yuji Sano
    • Journal Title

      Asian J. Math.

      Volume: 17 Issue: 1 Pages: 17-31

    • DOI

      10.4310/ajm.2013.v17.n1.a2

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An integral invariant from the view point of locally conformally Kahler geometry2013

    • Author(s)
      Kota Hattori
    • Journal Title

      Manuscripta Mathematica

      Volume: 140 Issue: 1-2 Pages: 1-12

    • DOI

      10.1007/s00229-011-0527-9

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the first eigenvalue of the Witten-Laplacian and the diameter of compact shrinking solitons2013

    • Author(s)
      A. Futaki, H.Z. Li and X.D. Li
    • Journal Title

      Ann. Glob. Anal. Geom

      Volume: 44 Issue: 2 Pages: 105-114

    • DOI

      10.1007/s10455-012-9358-5

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] Hessian formula for the norm squared moment maps and the structure of automorphisms2018

    • Author(s)
      Akito Futaki
    • Organizer
      CIRM Luminy, France
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] K安定性と幾何学的非線形問題2018

    • Author(s)
      二木昭人
    • Organizer
      東京大学数理科学研究科談話会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Hessian formula for moment maps and the structure of automorphisms2017

    • Author(s)
      Akito Futaki
    • Organizer
      Introduction to Modern Mathematics, Tsinghua University, China
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Volume minimization and obstructions to geometric problems2017

    • Author(s)
      Akito Futaki
    • Organizer
      Conference on Geometric Analysis, University of British Columbia, Canada
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Volume minimization and conformally Kahler Einstein-Maxwell metrics2017

    • Author(s)
      Akito Futaki
    • Organizer
      PRIMA third congress, Oaxaca, Mexico
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Volume minimization principle for conformally Kaehler Einstein-Maxwell metrics2017

    • Author(s)
      Akito Futaki
    • Organizer
      The 7-th International Workshop on Differential Geometry, Fukuoka
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fano-Ricci limit spaces and spectral convergence,2016

    • Author(s)
      Akito Futaki
    • Organizer
      Kahler Geometry, Einstein Metrics, and Generalizations
    • Place of Presentation
      Mathematical Sciences Research Insitute, Berkeley, California
    • Year and Date
      2016-03-21
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Intorduction to K-stability in Kahler geometry2016

    • Author(s)
      Akito Futaki
    • Organizer
      Berkeley-Tokyo Winter School
    • Place of Presentation
      University of California at Berkeley
    • Year and Date
      2016-02-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fano-Ricci limit spaces and spectral convergence2016

    • Author(s)
      Akito Futaki
    • Organizer
      11th Pacific Rim Complex Geometry Conference, Hefei, China
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Volume minimization principle for KRS, SE and cKEM2016

    • Author(s)
      Akito Futaki
    • Organizer
      International Conference on Differential Geometry, Macau, China
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fano-Ricci limit spaces and spectral convergence2015

    • Author(s)
      Akito Futaki
    • Organizer
      Taipei Conference on Complex Geometry
    • Place of Presentation
      Institute of Mathematics, Academia Sinica, Taipei, Taiwan
    • Year and Date
      2015-12-19
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Weighted Laplacian on real and complex complete metric measure spaces2015

    • Author(s)
      Akito Futaki
    • Organizer
      Recent Advances in Kahler Geometry
    • Place of Presentation
      Vanderbilt University, Nashville
    • Year and Date
      2015-05-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Weighted Laplacians on real and complex complete metric measure spaces2015

    • Author(s)
      二木昭人
    • Organizer
      複素解析幾何セミナー
    • Place of Presentation
      東京大学
    • Year and Date
      2015-04-20
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Weighted Laplacians on real and complex complete metric measure spaces2015

    • Author(s)
      二木昭人
    • Organizer
      満渕俊樹教授退職記念小研究会
    • Place of Presentation
      大阪大学
    • Year and Date
      2015-03-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Kaehler Geometry and GIT stability2015

    • Author(s)
      二木昭人
    • Organizer
      京都大学談話会
    • Place of Presentation
      京都大学
    • Year and Date
      2015-01-21
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] ケーラー・アインシュタイン計量とK 安定性2013

    • Author(s)
      二木昭人
    • Organizer
      第12 回岡シンポジュウム
    • Place of Presentation
      奈良女子大学
    • Year and Date
      2013-12-15
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Sasaki-Einstein geometry2013

    • Author(s)
      Akito Futaki
    • Organizer
      Geometry and dynamics 2013
    • Place of Presentation
      東京大学数理科学研究科
    • Year and Date
      2013-09-16
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Special Lagrangian submanifolds and Lagrangian self-shrinkers in toric Calabi-Yau cones2013

    • Author(s)
      Akito Futaki
    • Organizer
      LIE THEORY AND ITS APPLICATIONS IN PHYSICS
    • Place of Presentation
      Varna, Bulgaria
    • Year and Date
      2013-07-17 – 2013-07-24
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Lower diameter bound for compact shrinking solitons2013

    • Author(s)
      Akito Futaki
    • Organizer
      Extremal Kaehler Metrics
    • Place of Presentation
      Centre de recherches mathematiques, Universite de Montreal
    • Year and Date
      2013-05-26 – 2013-06-01
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] On the book ``Transformation groups in Differential Geometry''2013

    • Author(s)
      Akito Futaki
    • Organizer
      Geometry and Analysis on Manifolds, -- A Memorial Symposium for Professor Shoshichi Kobayashi --
    • Place of Presentation
      東京大学数理科学研究科
    • Year and Date
      2013-05-22 – 2013-05-25
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Book] プリンストン 数学大全2015

    • Author(s)
      砂田利一 ・石井仁司 ・平田典子 ・二木昭人 ・森真 監訳
    • Total Pages
      1192
    • Publisher
      朝倉書店
    • Related Report
      2015 Annual Research Report
  • [Remarks] Trends in Modern Geometry 2016

    • URL

      http://www.ms.u-tokyo.ac.jp/~afutaki/TIMG2016/TIMG2016.html

    • Related Report
      2016 Annual Research Report
  • [Funded Workshop] Trends in Modern Geometry 2017, 東京大学数理科学研究科2017

    • Related Report
      2017 Annual Research Report
  • [Funded Workshop] Trends in Modern Geometry 2016, 東京大学数理科学研究科2016

    • Related Report
      2016 Annual Research Report
  • [Funded Workshop] Trends in Modern Geometry 2015 & 10th Pacific Rim Complex Geometry Conference2015

    • Place of Presentation
      東京大学数理科学研究科 & ホテルサンバレー那須
    • Year and Date
      2015-07-27
    • Related Report
      2015 Annual Research Report
  • [Funded Workshop] Trends in Modern Geometry2014

    • Place of Presentation
      東京大学大学院数理科学研究科
    • Year and Date
      2014-07-07
    • Related Report
      2014 Annual Research Report

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Published: 2013-05-15   Modified: 2020-03-30  

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