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非可換代数幾何学や表現論に現れる三角圏の研究

Research Project

Project/Area Number 11J02233
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Algebra
Research InstitutionShizuoka University

Principal Investigator

上山 健太  静岡大学, 理学研究科, 特別研究員(PD)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2013: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2012: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2011: ¥700,000 (Direct Cost: ¥700,000)
Keywords非可換代数幾何学 / AS-Gorenstein alebra / AS-reularalebra / 次数付き孤立特異点 / 有限CM表現型 / Cohen-Macaula加群 / AS-Gorenstein algebra / Cohen-Macaulay加群 / Serre関手 / Gorenstein次元 / Auslander-Bridger公式
Research Abstract

本研究課題は非可換代数幾何学や表現論に現れる三角圏を研究することを目的としている. 昨年度までに得られていた研究成果によって, 非可換次数付き孤立特異点という研究対象が非可換代数幾何学的にも表現論的にも重要な研究対象であることが分かっていた. そこで本年度は非可換次数付き孤立特異点の研究をより推進させることを目標に, その周辺に現れる様々な代数や圏の考察を行った.
一つ目の研究では, 直既約次数付き極大Cohen-Macaulay加群が同型と次数のシフトを除いて有限個である(有限CM表現型)AS-Cohen-Macaulayalgebraが非可換次数付き孤立特異点になることを証明した. これはよく知られたAuslanderの定理の非可換次数付き類似であり, またJorgensenによって得られていた結果のFBNという仮定を外した一般化である. Auslanderの定理は可換環論や表現論で非常に重要な役割を担っているため, 今回の研究結果やその証明手法は非可換次数付き孤立特異点の研究においても重要な役割を果たすと考えられる. また, domainでない有限M表現型AS-Gorensteinalgebraの例を与え, その直既約次数付き極大Cohen-Macaulay加群の同型類も具体的に与えた.
二つ目の研究は静岡大学の毛利出氏との共同研究である. AS-regularalgebraに有限群を作用させて得られる不変式環の非可換射影スキームの導来圏を考察するため, 群作用がampleであるという概念を導入した. そしてまずAS-regularalgebraに作用する有限群がampleであることと, その不変式環が非可換次数付き孤立特異点になることが密接に関係していることを示した. さらにAS-regularalgebraにampleな有限群が作用しているならば, その不変式環の非可換射影スキームの導来圏がある有限次元代数の加群圏の導来圏で実現されることを示した.

Strategy for Future Research Activity

(抄録なし)

Report

(3 results)
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (38 results)

All 2014 2013 2012 2011 Other

All Journal Article (9 results) (of which Peer Reviewed: 3 results) Presentation (28 results) (of which Invited: 6 results) Remarks (1 results)

  • [Journal Article] Gorenstein dimension and AS—Gorenstein algebras2014

    • Author(s)
      Kenta Ueyama
    • Journal Title

      Communications in Algebra

      Volume: 42 Issue: 10 Pages: 4267-4282

    • DOI

      10.1080/00927872.2013.807111

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Noncommutative graded Gorenstein isolated singularities2013

    • Author(s)
      Kenta Ueyama
    • Journal Title

      Proceedings of the 45th Symposium on Ring Theory and Representation Theory

      Pages: 158-163

    • Related Report
      2013 Annual Research Report
  • [Journal Article] Graded Morita equivalences for geometric AS-regular algebras2013

    • Author(s)
      Izuru Mori and Kenta Ueyama
    • Journal Title

      Glasgow Mathematical Journal

      Volume: 55 Issue: 2 Pages: 241-257

    • DOI

      10.1017/s001708951200047x

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Graded maximal Cohen-Macaulay modules over noncommutative graded Gorenstein isolated singularities2013

    • Author(s)
      Kenta Ueyama
    • Journal Title

      Journal of Algebra

      Volume: 383 Pages: 58-103

    • DOI

      10.1016/j.jalgebra.2013.02.022

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Noncommutative graded isolated singularities and fixed subalgebras2013

    • Author(s)
      Kenta Ueyama
    • Journal Title

      Proceedings of the 34th Symposium on Commutative Algebras in Japan

      Pages: 196-204

    • Related Report
      2012 Annual Research Report
  • [Journal Article] 非可換次数付きGorenstein孤立特異点について2013

    • Author(s)
      Proceedings of the 34th Symposium on Commutative Algebras in Japan
    • Journal Title

      北海道大学数学講究録

      Volume: 157 Pages: 51-58

    • Related Report
      2012 Annual Research Report
  • [Journal Article] Graded Frobenius algebras and quantum Beilinson algebras2012

    • Author(s)
      Kenta Ueyama
    • Journal Title

      Proceedings of the 44th Symposium on Ring Theory and Representation Theory

      Pages: 180-186

    • Related Report
      2012 Annual Research Report
  • [Journal Article] Gorenstein次元とAS-Gorenstein algebra2012

    • Author(s)
      Proceedings of the 34th Symposium on Commutative Algebras in Japan
    • Journal Title

      第24回可換環論セミナー報告集

      Pages: 114-121

    • Related Report
      2012 Annual Research Report
  • [Journal Article] 幾何的代数と一般化された中山自己同型2011

    • Author(s)
      上山健太
    • Journal Title

      第8回城崎新人セミナー報告集

      Pages: 102-108

    • Related Report
      2011 Annual Research Report
  • [Presentation] Ample group action and isolated singularity2014

    • Author(s)
      Izuru Mori and Kenta Ueyama
    • Organizer
      Regularity and rigidity of noncommutative algebras
    • Place of Presentation
      University of Washington, Washington, USA
    • Year and Date
      2014-03-23
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Ampleness of group actions on graded algebras2014

    • Author(s)
      毛利出, 上山健太
    • Organizer
      日本数学会2014年度年会
    • Place of Presentation
      学習院大学(東京都)
    • Year and Date
      2014-03-17
    • Related Report
      2013 Annual Research Report
  • [Presentation] invariant theory of AS-regular algebras2014

    • Author(s)
      上山健太
    • Organizer
      第14回大和郡山セミナー
    • Place of Presentation
      奈良工業高等専門学校(奈良県)
    • Year and Date
      2014-03-08
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Ample group actions on AS-regular algebras2014

    • Author(s)
      上山健太
    • Organizer
      第19回代数学若手研究会
    • Place of Presentation
      信州大学(長野県)
    • Year and Date
      2014-02-27
    • Related Report
      2013 Annual Research Report
  • [Presentation] Ample group actions on AS—regular algebras and noncommutative graded isolated singularities2013

    • Author(s)
      Kenta Ueyama
    • Organizer
      Perspectives of Reprentation Theory of Algebras
    • Place of Presentation
      Nagoya University, Aichi Japan
    • Year and Date
      2013-11-15
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Finite Cohen—Macaulay representation type and noncommutative graded isolated singularities2013

    • Author(s)
      上山健太
    • Organizer
      日本数学会2013年度秋季総合分科会
    • Place of Presentation
      愛媛大学(愛媛県)
    • Year and Date
      2013-09-26
    • Related Report
      2013 Annual Research Report
  • [Presentation] Fixed subalgebras of AS—regular algebras under ample group actions2013

    • Author(s)
      Kenta Ueyama
    • Organizer
      Seminar Talk at the School of Mathematical Sciences
    • Place of Presentation
      Fudan University, Shanghai China
    • Year and Date
      2013-09-10
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Artin-Schelter Gorenstein algebras with isolated singularities2013

    • Author(s)
      Kenta Ueyama
    • Organizer
      RIMS workshop : Noncommutative Algebraic Geometry and Related Topics
    • Place of Presentation
      Kyoto University, Kyoto, Japan
    • Year and Date
      2013-07-01
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 多項式の行列解について―非可換代数幾何学への誘い―2013

    • Author(s)
      上山健太
    • Organizer
      近畿大学数学譜演会
    • Place of Presentation
      近畿大学(大阪府)
    • Year and Date
      2013-06-13
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] On graded algebras of finite Cohen-Macaulay type2013

    • Author(s)
      上山健太
    • Organizer
      第18回代数学若手研究会
    • Place of Presentation
      大阪大学(大阪府)
    • Year and Date
      2013-03-18
    • Related Report
      2012 Annual Research Report
  • [Presentation] 非可換次数付きGorenstein孤立特異点について2013

    • Author(s)
      上山健太
    • Organizer
      第9回数学総合若手研究集会(シングルセッション)
    • Place of Presentation
      北海道大学(北海道)
    • Year and Date
      2013-03-07
    • Related Report
      2012 Annual Research Report
  • [Presentation] Graded maximal Cohen-Macaulay modules over AS-Gorenstein algebras2013

    • Author(s)
      上山健太
    • Organizer
      第3回徳山環論セミナー
    • Place of Presentation
      徳山工業高等専門学校(山口県)
    • Year and Date
      2013-01-12
    • Related Report
      2012 Annual Research Report
  • [Presentation] Noncommutative graded isolated singularities and fixed subalgebras2012

    • Author(s)
      上山健太
    • Organizer
      第34回可換環論シンポジウム
    • Place of Presentation
      生産性国際交流センター(神奈川県)
    • Year and Date
      2012-11-25
    • Related Report
      2012 Annual Research Report
  • [Presentation] On AS-Gorenstein isolated singularities2012

    • Author(s)
      上山健太
    • Organizer
      日本大学特異点論月曜セミナー
    • Place of Presentation
      日本大学(東京都)
    • Year and Date
      2012-10-15
    • Related Report
      2012 Annual Research Report
  • [Presentation] Flxed subalgebras of AS-regular algebras under finite cyclic group actions2012

    • Author(s)
      上山健太
    • Organizer
      日本数学会2012年度秋季総合分科会
    • Place of Presentation
      九州大学(福岡県)
    • Year and Date
      2012-09-20
    • Related Report
      2012 Annual Research Report
  • [Presentation] Noncommutative graded Gorenstein isolated singularities2012

    • Author(s)
      上山健太
    • Organizer
      第45回環論および表現論シンポジウム
    • Place of Presentation
      信州大学(長野県)
    • Year and Date
      2012-09-07
    • Related Report
      2012 Annual Research Report
  • [Presentation] Graded maximal Cohen-Macaulay modules over noncommutative graded Gorenstein isolated singularities2012

    • Author(s)
      Kenta Ueyama
    • Organizer
      International Conference on Representations of Algebras (ICRA 2012), Bielefeld University
    • Place of Presentation
      Bielefeld University (Bielefeld, Germany)
    • Year and Date
      2012-08-17
    • Related Report
      2012 Annual Research Report
  • [Presentation] Serre functors for AS-Gorenstein algebras2012

    • Author(s)
      上山健太
    • Organizer
      日本数学会2012年度年会
    • Place of Presentation
      東京理科大学(東京都)
    • Year and Date
      2012-03-26
    • Related Report
      2011 Annual Research Report
  • [Presentation] On AS-Gorenstein algebras2012

    • Author(s)
      上山健太
    • Organizer
      (非)可換代数とトポロジー
    • Place of Presentation
      信州大学(長野県)
    • Year and Date
      2012-03-15
    • Related Report
      2011 Annual Research Report
  • [Presentation] balanced dualizing complexを持つ代数について2012

    • Author(s)
      上山健太
    • Organizer
      第9回城崎新人セミナー
    • Place of Presentation
      豊岡市立城崎健康福祉センター(兵庫県)
    • Year and Date
      2012-02-13
    • Related Report
      2011 Annual Research Report
  • [Presentation] Homological properties of noncommutative connected graded algebras2012

    • Author(s)
      上山健太
    • Organizer
      第9回大和郡山セミナー
    • Place of Presentation
      奈良工業高等専門学校(奈良県)
    • Year and Date
      2012-02-11
    • Related Report
      2011 Annual Research Report
  • [Presentation] Gorenstein dimension and AS-Gorenstein algebras2012

    • Author(s)
      上山健太
    • Organizer
      第24回可換環論セミナー
    • Place of Presentation
      霧島市市民サービスセンター(鹿児島県)
    • Year and Date
      2012-02-01
    • Related Report
      2011 Annual Research Report
  • [Presentation] Noncommutative graded isolated singularities2012

    • Author(s)
      上山健太
    • Organizer
      岡山環論セミナー
    • Place of Presentation
      岡山大学(岡山県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] AS-regular algebras and graded Morita equivalences2011

    • Author(s)
      上山健太
    • Organizer
      第10回静岡代数学セミナー
    • Place of Presentation
      静岡大学(静岡県)
    • Year and Date
      2011-12-03
    • Related Report
      2011 Annual Research Report
  • [Presentation] The Auslander-Bridger formula and the AS-Gorenstein property2011

    • Author(s)
      上山健太
    • Organizer
      日本数学会2011年度秋季総合分科会
    • Place of Presentation
      信州大学(長野県)
    • Year and Date
      2011-09-28
    • Related Report
      2011 Annual Research Report
  • [Presentation] Graded Frobenius algebras and quantum Beilinson algebras2011

    • Author(s)
      上山健太
    • Organizer
      第44回環論および表現論シンポジウム
    • Place of Presentation
      岡山大学(岡山県)
    • Year and Date
      2011-09-26
    • Related Report
      2011 Annual Research Report
  • [Presentation] Auslander-Reiten sequence入門(1),(2)2011

    • Author(s)
      上山健太, 木村真弓
    • Organizer
      第8回可換環論サマースクール
    • Place of Presentation
      名古屋大学(愛知県)
    • Year and Date
      2011-08-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] Some results on AS-Gorenstein algebras2011

    • Author(s)
      Kenta Ueyama
    • Organizer
      The Sixth China-Japan-Korea International Conference on Ring and Module Theory
    • Place of Presentation
      Kyung Hee University at Suwon, (Suwon, Korea)
    • Year and Date
      2011-07-01
    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.ipc.shizuoka.ac.jp/~f5144004/index.html

    • Related Report
      2011 Annual Research Report

URL: 

Published: 2011-12-12   Modified: 2024-03-26  

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