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2008 Fiscal Year Annual Research Report

モジュライと代数的サイクルをめぐる代数多様体の数理

Research Project

Project/Area Number 19104001
Research InstitutionThe University of Tokyo

Principal Investigator

桂 利行  The University of Tokyo, 大学院・数理科学研究科, 教授 (40108444)

Co-Investigator(Kenkyū-buntansha) 寺杣 友秀  東京大学, 大学院・数理科学研究科, 教授 (50192654)
斉藤 秀司  東京大学, 大学院・数理科学研究科, 教授 (50153804)
向井 茂  京都大学, 数理解析研究所, 教授 (80115641)
中村 郁  北海道大学, 大学院・理学研究所, 教授 (50022687)
Keywords代数学 / モジュライ / ケンマー曲面 / 準楕円曲面 / サイクル / チャウ群 / トーリック多様体 / 変形
Research Abstract

研究実施計画に関しては、「Confrence on Arithmetic and Algebraic Geonetry」(2008年7月3日-6日)、「Arithnetic and Algebraic Geometry Related to Modull Spaces」(2009年1月19日-23日)という実施予定していた国際会議を東大数理大講義室で行った。前者には、フィールズ賞受賞者の森重文を始め、A. Ogus, L. -IIIusie, F.0ort, F. Catanese, G. van der Geerなど代数幾何学に於ける世界一流の研究者に講演いただき討論によって代数幾何に関する知見を得た。後者には、フィールズ賞受賞者のG. Faltingsを始めA. Verra, N. Shepherd-Barron, G. vander Geer, L. Illusie, S. Grushevsky等を招聴し、主にモジュライに関する情報を収集した。このほか5回のシンポジウム、研究集会を単独、奉るいは共同で主催した。研究成果はCalab-Yau多様体の不変量に関するものが中心になった。とくに、a-数とh-数という数値的不変量を正標数に於ける一般の多様体の不変量に一般化してその性質を解明し、その一部は上記7月の国際会議で発表した。Quasi-elliptic surfaceのnulti-CanOnical systemについては、重複ファイバーがtameなものしかない場合の曲面の構造を解明した。分担者金銅は平面4次曲線のモジュライ空間の射影モデルをBorcherdsによる保型形式を用いて構成した。分担者石井はジェットスキームの幾何学的性質が基礎スキームの幾何学的性質にどのように反映するかを研究し、基礎スキームが非特異になる条件を得た。分担者寺柚は、上記7月の国際会議主催を分担するとともに、Artin-SchreierI DGAは有限素体上に定義された代数多様体に対して定義されるものであるが、このバー複体から基本群のp進完備化が計算されることを証明した。分担者中村は、これまで得られた2種類のアーベル多様体のモジュライ空間のコンパクト化の関係を明確にした。

  • Research Products

    (38 results)

All 2009 2008

All Journal Article (10 results) (of which Peer Reviewed: 8 results) Presentation (28 results)

  • [Journal Article] A finite theorem for zero-cycles over p-adic fields2009

    • Author(s)
      S. Saito and K. Sato
    • Journal Title

      To appear in Annals of Mathematics

    • Peer Reviewed
  • [Journal Article] Algebraic cycles and Mumford-Griffiths invariants2009

    • Author(s)
      J. Lewis and S. Saito
    • Journal Title

      to. Appear in Amer. J. of Math.

    • Peer Reviewed
  • [Journal Article] Analyse micro-locale l-adique en caracteristique p>0:Le casd' un trait2009

    • Author(s)
      T. Saito and Ahmed Abbes
    • Journal Title

      Publication of the Research Institute for Mathematical Sciences 45-1

      Pages: 25-74

    • Peer Reviewed
  • [Journal Article] McKay correpondence2009

    • Author(s)
      I. Nakamura
    • Journal Title

      to appear ni Proc. Conference in homor of John MccKay 2007, CRM Mongraph series.

  • [Journal Article] Another canonical compacitification of the moduli space of abe of abelian varieties2009

    • Author(s)
      I. Nakamura
    • Journal Title

      to appear in Algebraic and Arithmetic Structures of Module Spaces

  • [Journal Article] Surfaces over a p-adic field with infinte torsion in the Chow group of O-cycles.2008

    • Author(s)
      M. Asakura and S. Saito
    • Journal Title

      Algebra and Number Theory 1

      Pages: 163-181

    • Peer Reviewed
  • [Journal Article] Maximal components of Noether-Lefschetz locus for Beiliason-Hodge cycles.2008

    • Author(s)
      M. Asakura and S. Saito
    • Journal Title

      Math. Ann. 341

      Pages: 169-199

    • Peer Reviewed
  • [Journal Article] Ramification theory fer varieties over a perfect field2008

    • Author(s)
      T. Saito and K. Kato
    • Journal Title

      Annals of Mathematics 168

      Pages: 33-96

    • Peer Reviewed
  • [Journal Article] Divisorial valuations via arcs Tommaso de Fernex2008

    • Author(s)
      Lawrence Ein and S. Isii
    • Journal Title

      Publ, EINS, Kyoto Univ. 44

      Pages: 425-448

    • Peer Reviewed
  • [Journal Article] Smoothness and jet schemes2008

    • Author(s)
      S. Ishii
    • Journal Title

      Advanced Studies in Pure Mathematics

    • Peer Reviewed
  • [Presentation] Del Pezzo 曲面のモジュライとBorcherds products2009

    • Author(s)
      M. Kondo
    • Organizer
      成木勇夫先生退職記念研究会「表現幾何」
    • Place of Presentation
      名古屋大学
    • Year and Date
      20090300
  • [Presentation] Uniformizations for the moduli of curves of genus 3, 4 and 62009

    • Author(s)
      M. Kondo
    • Organizer
      Workshop on Moduli Spaces
    • Place of Presentation
      Sogang University (Korea)
    • Year and Date
      20090100
  • [Presentation] 正標数の世界に40年2009

    • Author(s)
      T. Katsura
    • Organizer
      談話会
    • Place of Presentation
      東京大学
    • Year and Date
      2009-03-12
  • [Presentation] From jet schemes to the bsdr dvheme2009

    • Author(s)
      S. Ishii
    • Organizer
      Main Seminar in Algebraic Geometry
    • Place of Presentation
      MSRI (Mathematical Science Research Institute, Berkeley)
    • Year and Date
      2009-03-09
  • [Presentation] Unirationality of moduli apaces of polaarized K3 surfaces2009

    • Author(s)
      S. Mukai
    • Organizer
      Algebraic Geometry Colloquium
    • Place of Presentation
      MSRI, Univ, of Califofnial Berkeley USA
    • Year and Date
      2009-02-20
  • [Presentation] Two compactifications of moduli spaces of abelian varieties, Arithmetic and algebraic geometry related to mokuli apaces2009

    • Author(s)
      I Nakamura
    • Place of Presentation
      Univ. Tokyo
    • Year and Date
      2009-01-19
  • [Presentation] 分岐理論の現状と展望2009

    • Author(s)
      斉藤毅
    • Organizer
      数論幾何における分岐
    • Place of Presentation
      神戸フルーツフラワーパーク
    • Year and Date
      2009-01-13
  • [Presentation] Finiteness results for motivec cohomology of arithmetic schemes.2008

    • Author(s)
      S. Saito
    • Organizer
      Quadratic formsl lineat algebraic groups and cohomology,
    • Place of Presentation
      University of Hyderabad, Hyderabad, India
    • Year and Date
      20081200
  • [Presentation] Local Fourier transform and epsilon factors2008

    • Author(s)
      T. Saito
    • Organizer
      代数幾何研究集会
    • Place of Presentation
      代数幾何研究集会
    • Year and Date
      20080700
  • [Presentation] Non-symplectic sutmorphisms of K3 sufaces and ball quotients2008

    • Author(s)
      M. Kondo
    • Organizer
      Active period on Moduli
    • Place of Presentation
      Univ. of Warwick (UK)
    • Year and Date
      20080700
  • [Presentation] Roitman's theorem for 1-cycles on arithmetic schemes.2008

    • Author(s)
      S. Saito
    • Organizer
      Algebraic Geometry
    • Place of Presentation
      University of Munich, Munich, Germany,
    • Year and Date
      20080600
  • [Presentation] Finite non-symplectic automorphisms of K3 surfaces and moduli2008

    • Author(s)
      M. Kondo
    • Place of Presentation
      Univ. Paris VII.
    • Year and Date
      20080600
  • [Presentation] トーリック多様体と半群環のコホモロジー群2008

    • Author(s)
      石田正典
    • Organizer
      京都大学数学教室談話会
    • Place of Presentation
      京都大学
    • Year and Date
      2008-12-10
  • [Presentation] A canonical morphism from SQ_<g.k>^<torie> to SQ_<g,k>2008

    • Author(s)
      I Nakamura
    • Place of Presentation
      Kyoto Univ.
    • Year and Date
      2008-11-21
  • [Presentation] Cohomology groups of semigroup rings and toric varieties2008

    • Author(s)
      石田正典
    • Organizer
      第30回可換環シンポジウム
    • Place of Presentation
      佐賀、国民宿舎虹の松原ホテル
    • Year and Date
      2008-11-19
  • [Presentation] Thomae's formula and binary tree2008

    • Author(s)
      T. Terasoma
    • Organizer
      城崎代数幾何シンポジュウム
    • Year and Date
      2008-10-21
  • [Presentation] Artin-Schreier SGAとF, root crystal2008

    • Author(s)
      T. Terasoma
    • Place of Presentation
      東北大学
    • Year and Date
      2008-10-06
  • [Presentation] Cohomology groups of toric varieties2008

    • Author(s)
      石田正典
    • Organizer
      特異点と多様体の幾何
    • Place of Presentation
      草津セミナーハウス
    • Year and Date
      2008-09-12
  • [Presentation] Compactification of moduli of avelian varieties2008

    • Author(s)
      I. Nakamura
    • Organizer
      Seminar on Calalbi-Yau.
    • Place of Presentation
      Queen' University, Canada
    • Year and Date
      2008-09-11
  • [Presentation] From genus 2 to genus 32008

    • Author(s)
      T. Katsura
    • Organizer
      Explicit Structures in Modular Forms and Number
    • Place of Presentation
      Kinki Univ.
    • Year and Date
      2008-09-07
  • [Presentation] Stability and compactification of moduli of abelian varieties2008

    • Author(s)
      I. Nakamura
    • Organizer
      Colloquium of the Centre of mathmatical research
    • Place of Presentation
      Montereal University
    • Year and Date
      2008-09-05
  • [Presentation] Geometric properties by jet schemes2008

    • Author(s)
      S. Ishii
    • Organizer
      Hayama Symposium on Complex Analysis in Several Variables XII
    • Place of Presentation
      葉山国際村センター
    • Year and Date
      2008-07-15
  • [Presentation] Polarized K3 surfaces of degree 322008

    • Author(s)
      S. Mukai
    • Organizer
      Couference of Moduli Spaces
    • Place of Presentation
      Univ. of Warwick, UK
    • Year and Date
      2008-07-10
  • [Presentation] Involutions of Enriqus surfaces2008

    • Author(s)
      . Mukai
    • Organizer
      Conference of Moduli Spaces
    • Place of Presentation
      Univ. of Warweck, UK
    • Year and Date
      2008-07-07
  • [Presentation] Some remarks on invariants of algebraic varieties in positive characteristic2008

    • Author(s)
      T. Katsura
    • Organizer
      Arithmetic and Algebraic Geometry
    • Place of Presentation
      Univ. Tokyo
    • Year and Date
      2008-07-04
  • [Presentation] Cohomologically trivial involutions of Enriques surfaces and Shioda-Inose correspondence.2008

    • Author(s)
      S. Mukai
    • Organizer
      Algebraic Geometry
    • Place of Presentation
      Lorentz Center, Leiden the NetherlandS. Mukai
    • Year and Date
      2008-07-02
  • [Presentation] Local Fourier Transform and Epsilon factors2008

    • Author(s)
      T. Saito
    • Organizer
      arithmetic side Workshop on Arethmetic and Algebraic Geometry,
    • Place of Presentation
      Tambara
    • Year and Date
      2008-06-29
  • [Presentation] Invariants and moduli2008

    • Author(s)
      S. Mukai
    • Organizer
      Geometric Invariant Theory
    • Place of Presentation
      Univ. Gottingen. Germany
    • Year and Date
      2008-06-03

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Published: 2010-06-11   Modified: 2016-04-21  

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