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2012 Fiscal Year Final Research Report

Kahler-Einstein metrics and stability

Research Project

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Project/Area Number 22740041
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Geometry
Research InstitutionKumamoto University (2011-2012)
Kyushu University (2010)

Principal Investigator

SANO Yuji  熊本大学, 大学院・自然科学研究科, 准教授 (00399792)

Project Period (FY) 2010 – 2012
Keywordsケーラーアインシュタイン計量 / K-安定性
Research Abstract

In this project, we proved the following results. (1) We showedthe algebro-geometric proof for the relation between the alpha invariant and K-stability.(2) We gave the first example of asymptotically Chow unstable Kahler-Einstein manifolds.(3) We calculated the support of the multiplier ideal subschemes induced by Kahler-Ricciflow. (4) We gave the lower diameter bounds for compact shrinking Ricci solitons.

  • Research Products

    (21 results)

All 2013 2012 2011 2010 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (13 results) Remarks (2 results)

  • [Journal Article] Lower diameterbounds for compact shrinking Riccisolitons2013

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

      The Asian Journal of Mathematics

      Volume: Vol. 17 Pages: 17-32

    • Peer Reviewed
  • [Journal Article] Multiplier ideal sheaves andthe Kahler-Ricci flow on toric Fanomanifolds with largesymmetry2012

    • Author(s)
      Yuji Sano
    • Journal Title

      Communications in Analysis andGeometry

      Volume: Vol. 20 Pages: 341-368

    • Peer Reviewed
  • [Journal Article] An example of asymptotically Chow unstablemanifolds with constant scalarcurvature2012

    • Author(s)
      Hajime Ono, Yuji Sano, Naoto Yotsutani
    • Journal Title

      Annales de L'Institut Fourier

      Volume: Vol. 62 Pages: 1265-1287

    • Peer Reviewed
  • [Journal Article] Alpha invariantand K-stability of Q-Fano varieties2012

    • Author(s)
      Yuji Odaka, Yuji Sano
    • Journal Title

      Advances in Mathematics

      Volume: Vol.229 Pages: 2818-2834

    • Peer Reviewed
  • [Journal Article] Multiplierideal sheaves and geometric problems,London Mathematical Society Lecture NoteSeries2012

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

      CambridgeUniversity Press, Cambridge

      Volume: 394 Pages: 68-93.

    • Peer Reviewed
  • [Journal Article] Hilbert series and obstructions toasymptotic semistability2011

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

      Advances inMathematics

      Volume: Vol.226 Pages: 254-284

    • Peer Reviewed
  • [Presentation] Extremal metrics and lowerbound of the modified K-energy2012

    • Author(s)
      Yuji Sano
    • Organizer
      RecentDevelopments in Kahler Geometry
    • Place of Presentation
      Institut Henri Poincare (フランス)
    • Year and Date
      2012-12-10
  • [Presentation] A dynamical approach tobalanced metrics with automorphism group2012

    • Author(s)
      佐野友二
    • Organizer
      Symposium on ARITHMETIC & GEOMETRY
    • Place of Presentation
      九州大学(福岡)
    • Year and Date
      2012-06-02
  • [Presentation] Alpha invariant andK-stability of Fano varieties (joint withY. Odaka)2012

    • Author(s)
      佐野友二
    • Organizer
      第7回代数・解析・幾何セミナー
    • Place of Presentation
      鹿児島大学(鹿児島)
    • Year and Date
      2012-02-14
  • [Presentation] A dynamical approach tobalanced metrics with automorphism group2012

    • Author(s)
      Yuji Sano
    • Organizer
      第7回日中友好幾何学研究集会
    • Place of Presentation
      ホテルレジーナ河口湖(山梨県)
    • Year and Date
      2012-01-14
  • [Presentation] A dynamical approach tobalanced metrics with automorphism group2011

    • Author(s)
      Yuji Sano
    • Organizer
      2011 Complex Geometry and SymplecticGeometry Conference
    • Place of Presentation
      中国科学技術大学(中国)
    • Year and Date
      2011-08-16
  • [Presentation] ケーラー・アインシュタイン計量の存在への障害的因子について2011

    • Author(s)
      佐野友二
    • Organizer
      部分多様体の微分幾何学的研究
    • Place of Presentation
      京都大学数理解析研究所(京都)
    • Year and Date
      2011-06-28
  • [Presentation] Alpha invariant andK-stability of Fano varietes (joint workwith Yuji Odaka)2011

    • Author(s)
      佐 野 友 二
    • Organizer
      代数幾何学研究集会 -ファノ多様体と正標数上の話題を中心として-
    • Place of Presentation
      九州大学(福岡)
    • Year and Date
      2011-02-21
  • [Presentation] Alpha invariant andK-stability of Fano varieties2011

    • Author(s)
      Yuji Sano
    • Organizer
      Extremalmetrics:evolution equations and stability(Complex and Riemannian Geometry Week2)
    • Place of Presentation
      CIRM(フランス)
    • Year and Date
      2011-02-08
  • [Presentation] Alpha invariant andK-stability of Fano varieties2010

    • Author(s)
      Yuji Sano
    • Organizer
      BirationalGeometry in honor of V.V. Shokurov's 60thBirthday
    • Place of Presentation
      ICMS Edinburgh(エジンバラ)
    • Year and Date
      2010-12-10
  • [Presentation] Alpha invariant andK-stability2010

    • Author(s)
      Yuji Sano
    • Organizer
      第16回複素幾何シンポジウム
    • Place of Presentation
      信州菅平高原 プチホテル ゾンタック(長野県)
    • Year and Date
      2010-10-23
  • [Presentation] On multiplier ideal sheavesand test configurations on toric Fanomanifolds (Obstructive divisors toKahler-Einstein metrics)2010

    • Author(s)
      Yuji Sano
    • Organizer
      KomplexeAnalysis
    • Place of Presentation
      Oberwolfach(ドイツ)
    • Year and Date
      2010-09-01
  • [Presentation] On multiplier ideal sheavesand test configurations on toric Fanomanifolds2010

    • Author(s)
      Yuji Sano
    • Organizer
      Workshop on Moduli andBirational Geometry
    • Place of Presentation
      POSTECH (韓国)
    • Year and Date
      2010-08-06
  • [Presentation] Obstructive divisors to theexistence of Kahler-Einstein metrics2010

    • Author(s)
      Yuji Sano
    • Organizer
      The 5th Pacific Rim Complex and SymplecticGeometry Conference 2010
    • Place of Presentation
      伊勢志摩ロイヤルホテル(三重県)
    • Year and Date
      2010-07-30
  • [Remarks]

    • URL

      http://www.sci.kumamoto-u.ac.jp/~sano/research.html

  • [Remarks]

    • URL

      http://researchmap.jp/sanoyuji/

URL: 

Published: 2014-08-29  

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