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Rigid Cohen-Macaulay加群の研究

Research Project

Project/Area Number 18654004
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Algebra
Research InstitutionOkayama University

Principal Investigator

吉野 雄二  Okayama University, 大学院・自然科学研究科, 教授 (00135302)

Co-Investigator(Kenkyū-buntansha) 伊山 修  名古屋大学, 多元数理科学研究科, 准教授 (70347532)
Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2007: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2006: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywords可換環 / Cohen-Macaulay加群 / 三角圏 / 変形と退化
Research Abstract

研究代表者の吉野と分担者の伊山修との共同研究の成果として、一般の三角圏における直既約対象の同型類の集合へのbraid群の作用としてmutationを定義し、これに関する一般論を構築し、それをrigid Cohen-Macaulay加群の分類に応用した。とくに、3次元3次のベロネーゼ部分環上のrigidな極大Cohen-Macaulay加群の完全な分類がこれによって完成した。そのほか種々の分類可能なrigid Cohen-Macaulay加群の例が一連の考察により得られた。これらは極大Cohen-Macaulay加群の安定圏における極大直交部分圏を考察することで得られる。この成果については,雑誌Inventiones Mathematicaeに掲載が認められ2008年度中に出版の予定である。導来圏における同種の問題は現在も研究が進行中である。
また、rigidな加群についての一般的考察から、加群の変形および退化の理論についての詳しい考察がなされた。とくに、変形理論の一般化として、非可換なパラメータ空間を有する普遍変形族の構成に成功し、従前の変形理論における障害理論を非可換な普遍変形族を使って解釈しなおすことができることがわかった。との非可換変形理論については研究を続行中である。

Report

(2 results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (22 results)

All 2008 2007 2006

All Journal Article (10 results) (of which Peer Reviewed: 6 results) Presentation (12 results)

  • [Journal Article] Mutations in triangulated categories and rigid Cohen-Macaulay modules2008

    • Author(s)
      O. Iyama and Y. Yoshino
    • Journal Title

      Inventiones Matematicae 172

      Pages: 117-168

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cluster tilting for one-dimensional hypersurface singularities2008

    • Author(s)
      I. Burban, O. Iyama, B. Keller and I. Reiten
    • Journal Title

      Advances in Mathematics 217

      Pages: 2443-2484

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On a group graded version of BGG2007

    • Author(s)
      E. L. Green, R. Martinez-Villa and Y. Yoshino
    • Journal Title

      Communications in Algebra 35

      Pages: 3145-3163

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Higher dimensional Auslander-Reiten theory on maximal orthogonal subcategories2007

    • Author(s)
      Osamu Iyama
    • Journal Title

      Advances in Mathematics 210

      Pages: 22-50

    • Related Report
      2007 Annual Research Report 2006 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Auslander correspondence2007

    • Author(s)
      Osamu Iyama
    • Journal Title

      Advances in Mathematics 210

      Pages: 51-82

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Auslander-type conditions and cotorsion pairs2007

    • Author(s)
      Z. Huang and O. Iyama
    • Journal Title

      Journal of Algebra 318

      Pages: 93-110

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On a group graded version of BGG2007

    • Author(s)
      E.L.Green, R.Martinez-Villa, Y.Yoshino
    • Journal Title

      Communications in Algebra (確約あり)(掲載予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Auslander correspodence2007

    • Author(s)
      Osamu lyama
    • Journal Title

      Advances in Mathematics 210

      Pages: 51-82

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Torsion freeness and normality of associated graded rings and Rees algebras of monomial ideals2006

    • Author(s)
      Cesar A.Escobar, Rafael H.Villarreal, Yuji Yoshino
    • Journal Title

      Lecture Notes in Pure and Applied Mathematics 244

      Pages: 69-84

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Degeneration and G-dimension of modules2006

    • Author(s)
      Yuji Yoshino
    • Journal Title

      Lecture Notes in Pure and Applied Mathematics 244

      Pages: 259-265

    • Related Report
      2006 Annual Research Report
  • [Presentation] Deforming a chain complex to non-commutative direction2008

    • Author(s)
      Yuji Yoshino
    • Organizer
      International Conference toward establishing a cutting-edge platform for commutative ring theory in the 21st century
    • Place of Presentation
      横浜開港記念会館
    • Related Report
      2007 Annual Research Report
  • [Presentation] Cluster tilting in 2-Calabi-Yau categories II2008

    • Author(s)
      Osamu Iyama
    • Organizer
      Representation theory of finite dimensional algebras
    • Place of Presentation
      Oberwolfach(ドイツ)
    • Related Report
      2007 Annual Research Report
  • [Presentation] Cluster tilting for one-dimensional hypersurface singularities2008

    • Author(s)
      Osamu Iyama
    • Organizer
      International Conference toward establishing a cutting-edgeplatform for commutative ring theory in the 21st century
    • Place of Presentation
      横浜開港記念会館
    • Related Report
      2007 Annual Research Report
  • [Presentation] 局所コホモロジー加群の一般化とその消滅についてII2007

    • Author(s)
      高橋亮, 吉野雄二, 吉澤毅
    • Organizer
      日本数学会一般講演
    • Place of Presentation
      東北大学
    • Related Report
      2007 Annual Research Report
  • [Presentation] 非可換パラメーターを基礎にした鎖複体の普遍持ち上げ2007

    • Author(s)
      吉野雄二
    • Organizer
      第52回代数学シンポジウム
    • Place of Presentation
      神戸大学
    • Related Report
      2007 Annual Research Report
  • [Presentation] Local cohomology with a non-closed support2007

    • Author(s)
      吉野雄二
    • Organizer
      研究集会「可換環論と鏡映群の表現論」
    • Place of Presentation
      東海大学
    • Related Report
      2007 Annual Research Report
  • [Presentation] Universal liftings of chain complexes based on non-commutative parameter algebras2007

    • Author(s)
      吉野雄二
    • Organizer
      代数幾何学シンポジウム
    • Place of Presentation
      兵庫県城崎温泉
    • Related Report
      2007 Annual Research Report
  • [Presentation] Grobner basis for the polynomial ring with infinite variables and its applications2007

    • Author(s)
      飯間圭一郎, 吉野雄二
    • Organizer
      第29回可換環論シンポジウム
    • Place of Presentation
      愛知厚生年金会館
    • Related Report
      2007 Annual Research Report
  • [Presentation] Remarks on equivalences of additive subcategories2007

    • Author(s)
      平松直哉, 吉野雄二
    • Organizer
      第29回可換環論シンポジウム
    • Place of Presentation
      愛知厚生年金会館
    • Related Report
      2007 Annual Research Report
  • [Presentation] Ring extensions of AB rings2007

    • Author(s)
      Saeed Nasseh, 吉野雄二
    • Organizer
      第29回可換環論シンポジウム
    • Place of Presentation
      愛知厚生年金会館
    • Related Report
      2007 Annual Research Report
  • [Presentation] Auslander-Reiten theory revisited2007

    • Author(s)
      Osamu Iyama
    • Organizer
      XII International Conference on Representations of Algebras and Workshop
    • Place of Presentation
      Nicolas Copernics Univ.(ポーランド)
    • Related Report
      2007 Annual Research Report
  • [Presentation] Cluster tilting for one-dimensional hypersurface singularities2007

    • Author(s)
      Osamu Iyama
    • Organizer
      RIMS International Project Research 2007 "Mirror Symmetry and Topological Field Theory"
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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