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2011 Fiscal Year Annual Research Report

格子、保型形式とモジュライ空間の総合的研究

Research Project

Project/Area Number 22224001
Research InstitutionNagoya University

Principal Investigator

金銅 誠之  名古屋大学, 大学院・多元数理科学研究科, 教授 (50186847)

Co-Investigator(Kenkyū-buntansha) 伊藤 由佳理  名古屋大学, 大学院・多元数理科学研究科, 准教授 (70285089)
伊山 修  名古屋大学, 大学院・多元数理科学研究科, 教授 (70347532)
菅野 浩明  名古屋大学, 大学院・多元数理科学研究科, 教授 (90211870)
長尾 健太郎  名古屋大学, 大学院・多元数理科学研究科, 助教 (10585574)
江口 徹  京都大学, 基礎物理学研究所, 教授 (20151970)
Keywords代数 / 代数幾何 / 格子 / 保型形式 / モジュライ空間 / K3曲面 / エンリケス曲面 / Calabi-Yau多様体
Research Abstract

1.格子理論や保型形式論を用いたモジュライ空間や自己同型の研究成果:研究代表者はCoble曲面のモジュライ空間とnodalエンリケス曲面のモジュライ空間の有理性をI.Dolgachevとの共同研究の中で証明した。また桂利行との共同研究において、標数3のある超特異K3曲面の新たな幾何的構造を見つけた。向井は大橋との共同研究でEnriques曲面にMathieu型のsemi-symplectic作用をもつ有限群を分類し、また高次数偏極K3曲面については,種数16のK3曲面のモジュライの単有理性についての論文を公開した。吉川はBorcherdsΦ関数の代数的表示を求め,その応用としてBorcherdsΦ関数に対するThomae型公式,Freitagテータ関数との関係,CM点における値の幾何学的解釈を川口、向井との共同研究で得た。小木曽はWehler型と呼ばれる任意次元のカラビ・ヤウ多様体の双有理変換群を完全に決定した。
2.周辺分野の研究成果:伊藤は石井亮、Alvaro Nolla de Celisとの共同研究で,SL(3,C)の非可環な有限部分群の特異点解消を,可換な有限部分群に分割した作用を考え,特異点解消をモジュライ空間として構成した。伊山はAmiot, Reitenとの共同研究で,古典的に知られた単純特異点と対応するDynkin箙の道多元環の間の三角圏同値の存在を、体系的な枠組みで捉えなおし,一般化した。長尾はA.Morrison, S.Mozgovoy, B.Szendroiとの共同研究において,ある種の3次元Calabi-Yau多様体に対して,モチーフ的Donaldson-Thomas不変量の明示的公式を見いだし、寺嶋郁二、山崎雅人との共同研究において,クラスター代数と3次元双曲幾何の新しい関係を発見した。菅野は、4次元N=2ゲージ理論におけるインスタントンの数え上げにより定義されるNekrasovの分配関数と共形ブロックの関係(AGT関係式)について研究を行い、特に面作用素(surface operator)とよばれる余次元2の欠陥を入れた分配関数(面作用素の期待値)が一般化W代数のVerma加群の適当な元(Whittakerベクトル)の内積として書けると予想して,その特徴付けを与えた。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

研究の主テーマである保型形式論や格子理論の観点からのモジュライ空間の研究や自己同型群などの研究において着実に成果があがってきている。特に当初予定していなかったエンリケス曲面に深く関係したCoble曲面等のモジュライ空間の有理性の証明に格子理論を用いることで成功した点があげられる。

Strategy for Future Research Activity

格子理論や保型形式を用いた研究は継続するが、より周辺分野との関係(特に数理物理との)にも重心を移した研究を進める。そのために今年度は海外の研究グループと共同でエジンバラにおいて国際研究集会「Algebraic Geometry modular forms and applications to Physics」を開催する。また分担者、連携研究者との研究連絡をより密なものとし共同研究へと発展させる。またエンリケス曲面の自己同型やモジュライの研究が進んできたので、この方向にも重点をおく予定である。

  • Research Products

    (43 results)

All 2012 2011 Other

All Journal Article (15 results) (of which Peer Reviewed: 15 results) Presentation (27 results) Remarks (1 results)

  • [Journal Article] Rational curves on the supersingular K3 surface with Artin invariant 1 in characteristic 32012

    • Author(s)
      T.Katsura, S.Kondo
    • Journal Title

      J.Algebra

      Volume: 352(掲載確定) Pages: 299-321

    • DOI

      10.1016/j.jalgebra.2011.10.047

    • Peer Reviewed
  • [Journal Article] Preprojective algebras and c-sortable words2012

    • Author(s)
      C.Amiot, O.Iyama, I.Reiten, G.Todorov
    • Journal Title

      Proc.Lond.Math.Soc.

      Volume: 104(掲載確定) Pages: 513-539

    • DOI

      10.1112/plms/pdr020

    • Peer Reviewed
  • [Journal Article] Motivic Donaldson-Thomas invariants of the conifold and the refined topological vertex2012

    • Author(s)
      Andrew Morrison, Sergey Mozgovoy, Kentaro Nagao, Balazs Szendroi
    • Journal Title

      Advances in Mathematics

      Volume: 230(掲載確定) Pages: 2065-2093

    • DOI

      10.1016/j.aim.2012.03.030

    • Peer Reviewed
  • [Journal Article] Hutchinson-Weber involutions degenerate exactly when the Jacobian2012

    • Author(s)
      H.Ohashi
    • Journal Title

      Publ.RIMS

      Volume: 48(掲載確定) Pages: 107-127

    • DOI

      10.2977/PRIMS/63

    • Peer Reviewed
  • [Journal Article] 2-Auslander algebras associated with reduced words in Coxeter groups2011

    • Author(s)
      O.Iyama, I.Reiten
    • Journal Title

      Int.Math.Res.Not.

      Volume: 2011(掲載確定) Pages: 1782-1803

    • DOI

      10.1093/imrn/rnq101

    • Peer Reviewed
  • [Journal Article] n-representation-finite algebras and twisted fractionally Calabi-Yau algebras2011

    • Author(s)
      M.Herschend, O.Iyama
    • Journal Title

      Bull.Lond.Math.Soc.

      Volume: 43(掲載確定) Pages: 449-466

    • DOI

      10.1112/blms/bdq101

    • Peer Reviewed
  • [Journal Article] Mutation of cluster-tilting objects and potentials2011

    • Author(s)
      A.Buan, O.Iyama, I.Reiten, D.Smith
    • Journal Title

      Amer.J.Math.

      Volume: 133(掲載確定) Pages: 835-887

    • DOI

      10.1353/ajm.2011.0031

    • Peer Reviewed
  • [Journal Article] n-representation-finite algebras and n-APR tilting2011

    • Author(s)
      O.Iyama, S.Oppermann
    • Journal Title

      Trans.Amer.Math.Soc.

      Volume: 363(掲載確定) Pages: 6575-6614

    • DOI

      10.1090/S0002-9947-2011-05312-2

    • Peer Reviewed
  • [Journal Article] Selfinjective quivers with potential and 2-representation-finite algebras2011

    • Author(s)
      M.Herschend, O.Iyama
    • Journal Title

      Compos.Math.

      Volume: 147(掲載確定) Pages: 1885-1920

    • DOI

      10.1112/S0010437X11005367

    • Peer Reviewed
  • [Journal Article] Recollement of homotopy categories and Cohen-Macaulay modules2011

    • Author(s)
      O.Iyama, K.Kato, J.Miyachi
    • Journal Title

      J.K-Theory

      Volume: 8(掲載確定) Pages: 507-542

    • DOI

      10.1017/is011003007jkt143

    • Peer Reviewed
  • [Journal Article] Macdonald operators and homological invariants of the colored Hopf Link2011

    • Author(s)
      H.Awata, H.Kanno
    • Journal Title

      J.Phys.A : Math.Theor.

      Volume: 44(掲載確定) Pages: 375201

    • DOI

      10.1088/1751-8113/44/37/375201

    • Peer Reviewed
  • [Journal Article] Instanton counting with a surface operator and the chain-saw quiver2011

    • Author(s)
      H.Kanno, Y.Tachikawa
    • Journal Title

      Journal of High Energy Physics

      Volume: 6(掲載確定) Pages: 119

    • DOI

      10.1007/JHEP06(2011)119

    • Peer Reviewed
  • [Journal Article] Counting invariant of perverse coherent sheaves and its wall-corssing2011

    • Author(s)
      K.Nagao, H.Nakajima
    • Journal Title

      Int.Math.Res.Notices

      Volume: 7(掲載確定) Pages: 3885-3938

    • DOI

      10.1093/imrn/rnq195

    • Peer Reviewed
  • [Journal Article] Refinde open noncommutative Donaldson-Thomas invariants for small crepant resolution2011

    • Author(s)
      K.Nagao
    • Journal Title

      Pacific Journal of Mathematics

      Volume: 254(掲載確定) Pages: 173-209

    • DOI

      10.2140/pjm.2011.254.173

    • Peer Reviewed
  • [Journal Article] Non-commutative Donaldson-Thomas invariants and vetex operators2011

    • Author(s)
      K.Nagao
    • Journal Title

      Geometry & Topology

      Volume: 15(掲載確定) Pages: 1509-1543

    • DOI

      10.2140/gt.2011.15.1509

    • Peer Reviewed
  • [Presentation] K3曲面の幾何とLeech格子2012

    • Author(s)
      S.Kondo
    • Organizer
      日本数学会年会特別講演
    • Place of Presentation
      東京理科大学
    • Year and Date
      2012-03-28
  • [Presentation] tau-tilting theory2012

    • Author(s)
      O.Iyama
    • Organizer
      Cluster categories and cluster tiltin
    • Place of Presentation
      ノルウェー理工科大学
    • Year and Date
      2012-03-28
  • [Presentation] Instanton partition function and generalized Whittaker states2012

    • Author(s)
      H.Kanno
    • Organizer
      学振2国間交流事業日露共同研究workshop
    • Place of Presentation
      大阪市立大学文化交流センター
    • Year and Date
      2012-03-28
  • [Presentation] Pseudo-tilting theory2012

    • Author(s)
      O.Iyama
    • Organizer
      Representation Theory of Chevalley Groups and Related Topics
    • Place of Presentation
      名古屋大学
    • Year and Date
      2012-03-15
  • [Presentation] Log del Pezzo surfaces of index three with multiple smooth divisors2012

    • Author(s)
      H.Ohashi
    • Organizer
      第9回アフィン代数幾何学研究集会
    • Place of Presentation
      関西学院大学
    • Year and Date
      2012-03-02
  • [Presentation] The rationality of the moduli spaces of Coble surfaces and of nodal Enriques surfaces2012

    • Author(s)
      S.Kondo
    • Organizer
      Arithmetic and Algebraic Geometry 2012
    • Place of Presentation
      Univ.of Tokyo
    • Year and Date
      2012-02-18
  • [Presentation] Instanton counting and the Whittaker states of the W-algebra2011

    • Author(s)
      H.Kanno
    • Organizer
      Synthesis of integrabilities in the context of gauge/string duality
    • Place of Presentation
      Math.Department of Higher School of Economics and Steklov Mathematical Institute, Moscow, Russia
    • Year and Date
      20110912,20110914
  • [Presentation] K3 and Enriques surfaces2011

    • Author(s)
      S.Kondo
    • Organizer
      Workshop on Arithmetic and Geometry of K3 surfaces and Calabi-Yau threefolds
    • Place of Presentation
      Fields Institute, Toronto, Canada
    • Year and Date
      20110817-20110818
  • [Presentation] On automorphism groups of Enriques surfaces2011

    • Author(s)
      H.Ohashi
    • Organizer
      城崎代数幾何学シンポジウム
    • Place of Presentation
      城崎大会議場
    • Year and Date
      2011-10-26
  • [Presentation] Refined topological vertex and matrix counting2011

    • Author(s)
      K.Nagao
    • Organizer
      組合せ論的表現論の拡がり
    • Place of Presentation
      RIMS
    • Year and Date
      2011-10-13
  • [Presentation] The moduli spaces of hessian quartic surfaces, Enriques surfaces, and automorphic forms2011

    • Author(s)
      S.Kondo
    • Organizer
      Automorphic forms and Moduli spaces
    • Place of Presentation
      CIRM, Luminy, France
    • Year and Date
      2011-10-10
  • [Presentation] n-representation infinite algebras2011

    • Author(s)
      O.Iyama
    • Organizer
      Shanghai Conference on Representation Theory of Algebras
    • Place of Presentation
      Shanghai Jiao Tong University
    • Year and Date
      2011-10-03
  • [Presentation] Tilting and cluster tilting for stable categories of Cohen-Macaulay modules2011

    • Author(s)
      O.Iyama
    • Organizer
      Noncommutative Algebraic Geometry
    • Place of Presentation
      Fudan University
    • Year and Date
      2011-09-16
  • [Presentation] Maximal subgroups of the Mathieu group M_{23} and symplectic automorphisms of supersingular K3 surfaces2011

    • Author(s)
      S.Kondo
    • Organizer
      代数幾何ワークショップ2011
    • Place of Presentation
      法政大学理工学部
    • Year and Date
      2011-09-08
  • [Presentation] On automorphism groups of Enriques surfaces2011

    • Author(s)
      H.Ohashi
    • Organizer
      代数幾何ワークショップ2011
    • Place of Presentation
      法政大学
    • Year and Date
      2011-09-08
  • [Presentation] Motivic Hall algebras2011

    • Author(s)
      K.Nagao
    • Organizer
      Cluster algebras, representation theory, and Poisson geometry
    • Place of Presentation
      BIRS
    • Year and Date
      2011-09-05
  • [Presentation] Higher dimensional crepant resolutions2011

    • Author(s)
      Y.Ito
    • Organizer
      研究集会「特異点とその広がり」
    • Place of Presentation
      京都大学
    • Year and Date
      2011-08-26
  • [Presentation] Auslander-Reiten duality for Cohen-Macaulay modules2011

    • Author(s)
      O.Iyama
    • Organizer
      第8回可換環論サマースクール
    • Place of Presentation
      名古屋大学
    • Year and Date
      2011-08-24
  • [Presentation] On automorphisms of Enriques surfaces2011

    • Author(s)
      H.Ohashi
    • Organizer
      Workshop on Arithmetic and Geometry of K3 surfaces and Calabi-Yau threefolds
    • Place of Presentation
      Fields Institute, University of Toronto
    • Year and Date
      2011-08-19
  • [Presentation] Instanton partition function and the Whittaker states of W-algebra2011

    • Author(s)
      H.Kanno
    • Organizer
      Summer Institute 2011(超弦理論と宇宙の創成)
    • Place of Presentation
      人材開発センター富士研修所
    • Year and Date
      2011-08-11
  • [Presentation] Elliptic genus of K3 surface and Mathieu group M242011

    • Author(s)
      T.Eguchi
    • Organizer
      Strings, branes and supergravity
    • Place of Presentation
      Istanbul, Turkey(招待講演)
    • Year and Date
      2011-08-03
  • [Presentation] Cluster algebras and categorification2011

    • Author(s)
      O.Iyama
    • Organizer
      Infinite Analysis 11
    • Place of Presentation
      University of Tokyo
    • Year and Date
      2011-07-29
  • [Presentation] Instanton partition function with a surface operator and W algebras2011

    • Author(s)
      H.Kanno
    • Organizer
      4th Workshop on Geometric Methods in Theoretical Physics, "Integrability in topological string and field theory"
    • Place of Presentation
      SISSA, Trieste, Italy
    • Year and Date
      2011-07-08
  • [Presentation] Elliptic genus of K3 surface and Mathieu group M242011

    • Author(s)
      T.Eguchi
    • Organizer
      Workshop on Mathieu moonshine
    • Place of Presentation
      ETH, Zurich, Switzerland(招待講演)
    • Year and Date
      2011-07-07
  • [Presentation] K3 surface and Mathieu group M242011

    • Author(s)
      T, Eguchi
    • Organizer
      Three generation of string theory conference at IHES
    • Place of Presentation
      IHES, Paris, France(招待講演)
    • Year and Date
      2011-05-20
  • [Presentation] Tilting and cluster tilting for stable categories of Cohen-Macaulay modules2011

    • Author(s)
      O.Iyama
    • Organizer
      Workshop on Matrix Factorizations
    • Place of Presentation
      University of Bielefeld
    • Year and Date
      2011-05-07
  • [Presentation] Motiyic Donaldson-Thomas invariants and wall-crossing2011

    • Author(s)
      K.Nagao
    • Organizer
      Workshop on Derived Categories
    • Place of Presentation
      Newton Institute, Cambridge
    • Year and Date
      2011-04-16
  • [Remarks]

    • URL

      http://www.math.nagoya-u.ac.jp/~kondo/

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Published: 2013-06-26  

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