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2013 Fiscal Year Annual Research Report

整環の表現論の新展開

Research Project

Project/Area Number 24340004
Research InstitutionNagoya University

Principal Investigator

伊山 修  名古屋大学, 多元数理科学研究科, 教授 (70347532)

Co-Investigator(Kenkyū-buntansha) 高橋 亮  名古屋大学, 多元数理科学研究科, 准教授 (40447719)
毛利 出  静岡大学, 理学(系)研究科(研究院), 准教授 (50436903)
HERSCHEND Martin  名古屋大学, 多元数理科学研究科, 准教授 (90624627)
源 泰幸  大阪府立大学, 理学(系)研究科(研究院), 准教授 (50527885)
Project Period (FY) 2012-04-01 – 2016-03-31
Keywords高次元Auslander-Reiten理論 / 重み付き射影直線 / Geigle-Lenzing完全交叉環 / 傾理論 / Cohen-Macaulay加群 / 有限表現型 / 標準多元環 / 導来圏
Research Abstract

Hershcend, Minamoto, Oppermannとの共同研究で, 表現論における古典的対象であるGeigle-Lenzingの重み付き射影直線と, Ringelの標準多元環の高次元化を導入し, 研究を行った. 具体的には, 射影空間Pd上の超平面(H_1,...,H_n)とそれらの重み(p_1,...,p_n)から, 特別な次数付き可換代数であるGL(=Geigle-Lenzing)完全交叉環を導入し, その表現論を研究した. 特に, GL完全交叉環のCohen-Macaulay加群の安定圏(=特異導来圏)が常に傾対象(=tilting object)を持つことを証明した. これはd=1の場合でも新しい結果である. またその応用として, GL完全交叉環がd有限表現型であるための十分条件を与えた. さらにGL完全交叉環に対してSerre構成を適用することによりGL射影空間を導入し, その表現論を研究した. 特にGL射影空間が常に傾束(=tilting bundle)を持つことを証明し, さらにその準同型環であるd標準多元環の性質を調べた. これらの対象は, 高次元Auslander-Reiten理論において基本的であり, 次年度以降も引き続き研究する予定である. 以上の研究成果に関して, MSRI, 上海交通大学, RIMS, 日本大学, コペルニクス大学, IPMU, 東京理科大学, ビーレフェルト大学, Oberwolfachでの研究集会およびセミナーで講演をした.
関連する研究成果として, Lernerとの共同研究で, 射影空間上の特別な整環であるGL整環を導入し, 上で述べたGL射影空間と圏同値となることを示し, さらに傾束を持つことを直接的に示した. これはGL射影空間に対する別のアプローチを与えるものである(arXiv:1306.5867).
他にWemyssとの共同研究(arXiv:1304.5259), Reiten, Todorov, Thomasとの共同研究(arXiv:1312.3659), Jorgensen, Yangとの共同研究(arXiv:1311.4891), Kato, Miyachiとの共同研究(arXiv:1309.6039)を行った.

Current Status of Research Progress
Current Status of Research Progress

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

Reason

高次元Auslander-Reiten理論において極めて重要と思われる, Geigle-Lenzing完全交叉環を導入し, その研究が順調に進んでいるため, 研究計画は順調に進んでいると考えられる.

Strategy for Future Research Activity

今後もGeigle-Lenzing完全交叉環を中心として研究を行う予定である.

Expenditure Plans for the Next FY Research Funding

少額の余りであり, 誤差の範囲である
少額のため使用計画に変更はない

  • Research Products

    (36 results)

All 2014 2013 Other

All Journal Article (16 results) (of which Peer Reviewed: 16 results,  Acknowledgement Compliant: 2 results) Presentation (19 results) (of which Invited: 14 results) Remarks (1 results)

  • [Journal Article] n-representation infinite algebras2014

    • Author(s)
      Martin Herschend, Osamu Iyama, Steffen Oppermann
    • Journal Title

      Adv. Math.

      Volume: 252 Pages: 292--342

    • DOI

      doi:10.1016/j.aim.2013.09.023

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] $\tau$-tilting theory2014

    • Author(s)
      Takahide Adachi, Osamu Iyama, Idun Reiten
    • Journal Title

      Compos. Math.

      Volume: 150 Pages: 415--452

    • DOI

      http://dx.doi.org/10.1112/S0010437X13007422

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Dimensions of triangulated categories with respect to subcategories2014

    • Author(s)
      T. Aihara, T. Araya, O. Iyama, R. Takahashi, M. Yoshiwaki
    • Journal Title

      J. Algebra

      Volume: 399 Pages: 205--219

    • DOI

      10.1016/j.jalgebra.2013.09.035

    • Peer Reviewed
  • [Journal Article] Maximal modifications and Auslander-Reiten duality for non-isolated singularities2014

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

      Invent. Math.

      Volume: 印刷中 Pages: 印刷中

    • DOI

      10.1007/s00222-013-0491-y

    • Peer Reviewed
  • [Journal Article] Singular Derived Categories of Q-factorial terminalizations and Maximal Modification Algebras2014

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

      Adv. Math.

      Volume: 印刷中 Pages: 印刷中

    • Peer Reviewed
  • [Journal Article] Non-commutative resolutions and Grothendieck groups2014

    • Author(s)
      H. Dao, O. Iyama, R. Takahashi, C. Vial
    • Journal Title

      J. Noncommut. Geom.

      Volume: 印刷中 Pages: 印刷中

    • Peer Reviewed
  • [Journal Article] Introduction to $\tau$-tilting theory2014

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

      Proc. Natl. Acad. Sci. USA

      Volume: 印刷中 Pages: 印刷中

    • Peer Reviewed
  • [Journal Article] Frobenius categories, Gorenstein algebras and rational surface singularities2014

    • Author(s)
      O. Iyama, M. Kalck, M. Wemyss, D. Yang
    • Journal Title

      Comp. Math.

      Volume: 印刷中 Pages: 印刷中

    • Peer Reviewed
  • [Journal Article] Ulrich ideals and modules2014

    • Author(s)
      S. Goto, K. Ozeki, R. Takahashi, K. Watanabe, K. Yoshida
    • Journal Title

      Math. Proc. Cambridge Philos. Soc.

      Volume: 156 Pages: 137--166

    • DOI

      10.1017/S0305004113000571

    • Peer Reviewed
  • [Journal Article] Classification of resolving subcategories and grade consistent functions2014

    • Author(s)
      H. Dao, R. Takahashi
    • Journal Title

      Int. Math. Res. Not. IMRN

      Volume: 印刷中 Pages: 印刷中

    • Peer Reviewed
  • [Journal Article] On the Noncommutative Bondal-Orlov Conjecture2013

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

      J. Reine Angew. Math.

      Volume: 683 Pages: 119--128

    • DOI

      10.1515/crelle-2012-0001

    • Peer Reviewed
  • [Journal Article] Tilting and cluster tilting for quotient singularities2013

    • Author(s)
      O. Iyama, R. Takahashi
    • Journal Title

      Math. Ann.

      Volume: 356 Pages: 1065--1105

    • DOI

      10.1007/s00208-012-0842-9

    • Peer Reviewed
  • [Journal Article] Stable categories of higher preprojective algebras2013

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

      Adv. Math.

      Volume: 244 Pages: 23--68

    • DOI

      10.1016/j.aim.2013.03.013

    • Peer Reviewed
  • [Journal Article] B-construction and C-construction2013

    • Author(s)
      I. Mori
    • Journal Title

      Comm. Algebra

      Volume: 41 Pages: 2071--2091

    • DOI

      10.1080/00927872.2011.653463

    • Peer Reviewed
  • [Journal Article] McKay Type Correspondence for AS-regular Algebras2013

    • Author(s)
      I. Mori
    • Journal Title

      J. London Math. Soc.

      Volume: 88 Pages: 97--117

    • DOI

      10.1112/jlms/jdt005

    • Peer Reviewed
  • [Journal Article] Classifying resolving subcategories over a Cohen-Macaulay local ring2013

    • Author(s)
      R. Takahashi
    • Journal Title

      Math. Z.

      Volume: 273 Pages: 569--587

    • DOI

      10.1007/s00209-012-1020-1

    • Peer Reviewed
  • [Presentation] (4回連続講演)Auslander-Reiten theory, Preprojective algebras, Cohen-Macaulay representation theory and n-representation-finiteness, n-representation infinite algebras2013

    • Author(s)
      Osamu Iyama
    • Organizer
      Workshop on Higher Dimensional Auslander-Reiten Theory
    • Place of Presentation
      IPM-Isfahan Branch, Isfahan, Iran
    • Year and Date
      20130507-20130509
    • Invited
  • [Presentation] Geigle-Lenzing spaces, d-canonical algebras and d-representation infinite algebras

    • Author(s)
      Osamu Iyama
    • Organizer
      Noncommutative Algebraic Geometry and Representation Theory seminar
    • Place of Presentation
      Mathematical Sciences Research Institute, USA
    • Invited
  • [Presentation] Geigle-Lenzing spaces and canonical algebras in dimension d

    • Author(s)
      Osamu Iyama
    • Organizer
      可換環論セミナー
    • Place of Presentation
      名古屋大学
  • [Presentation] Geigle-Lenzing spaces and canonical algebras in dimension d

    • Author(s)
      Osamu Iyama
    • Organizer
      Triangulated Categories in Representation Theory of Algebras (PRIMA 2013)
    • Place of Presentation
      Shanghai Jiao Tong University Shanghai, China
    • Invited
  • [Presentation] Geigle-Lenzing spaces and canonical algebras in dimension d

    • Author(s)
      Osamu Iyama
    • Organizer
      Noncommutative Algebraic Geometry and Related Topics
    • Place of Presentation
      Research Institute for Mathematical Sciences, Kyoto, Japan
    • Invited
  • [Presentation] Tilting theory on Geigle-Lenzing weighted projective spaces

    • Author(s)
      Osamu Iyama
    • Organizer
      特異点セミナー
    • Place of Presentation
      日本大学
  • [Presentation] Geigle-Lenzing spaces and canonical algebras in dimension d

    • Author(s)
      Osamu Iyama
    • Organizer
      Advances in Representation Theory of Algebras
    • Place of Presentation
      Nicolaus Copernicus University, Torun, Poland
    • Invited
  • [Presentation] (2回講演)Introduction to tilting theory, Geigle-Lenzing spaces and canonical algebras in dimension d

    • Author(s)
      Osamu Iyama
    • Organizer
      DMM (Derived McKay correspondence and Mirror symmetry) seminar
    • Place of Presentation
      IPMU, Japan
    • Invited
  • [Presentation] Geigle-Lenzing spaces and canonical algebras in dimension d

    • Author(s)
      Osamu Iyama
    • Organizer
      第46回環論および表現論シンポジウム
    • Place of Presentation
      東京理科大学
  • [Presentation] Geigle-Lenzing weighted projective spaces

    • Author(s)
      Osamu Iyama
    • Organizer
      第35回可換環論シンポジウム
    • Place of Presentation
      数理解析研究所
  • [Presentation] Mutation and g-vectors in $\tau$-tilting theory

    • Author(s)
      Osamu Iyama
    • Organizer
      Cluster Algebras and Related Topics
    • Place of Presentation
      Mathematisches Forschungsinstitut Oberwolfach, Germany
    • Invited
  • [Presentation] 多元環の表現論入門1,2

    • Author(s)
      Osamu Iyama
    • Organizer
      神楽坂代数セミナー
    • Place of Presentation
      東京理科大学
    • Invited
  • [Presentation] Silting reduction and Calabi-Yau reduction

    • Author(s)
      Osamu Iyama
    • Organizer
      Cluster Algebras and Combinatorics
    • Place of Presentation
      University of Muenster, Germany
    • Invited
  • [Presentation] Stable categories of one-dimensional hypersurface singularities

    • Author(s)
      Osamu Iyama
    • Organizer
      Representation Theory Seminar
    • Place of Presentation
      Universtaet Bielefeld
    • Invited
  • [Presentation] On higher representation infinite algebras

    • Author(s)
      Osamu Iyama
    • Organizer
      Representation Theory of Quivers and Finite Dimensional Algebras
    • Place of Presentation
      Mathematisches Forschungsinstitut Oberwolfach, Germany
    • Invited
  • [Presentation] Tilting theory revisited

    • Author(s)
      Osamu Iyama
    • Organizer
      Geometry, Physics and Representation Theory
    • Place of Presentation
      名古屋大学
    • Invited
  • [Presentation] Ample Group Action and Isolated Singularity

    • Author(s)
      Izuru Mori and Kenta Ueyama
    • Organizer
      Regularity and Rigidity of Noncommutative Algebras Seattle Workshop 2014
    • Place of Presentation
      University of Washington, Seattle, U.S.A.
  • [Presentation] Thick subcategories generated by Serre subcategories

    • Author(s)
      Ryo Takahashi
    • Organizer
      Tilting in abelian and triangulated categories
    • Place of Presentation
      Mathematisches Forschungsinstitut Oberwolfach, Germany
    • Invited
  • [Presentation] Annihilation of Ext modules and generation of derived categories

    • Author(s)
      Ryo Takahashi
    • Organizer
      Tilting in abelian and triangulated categories
    • Place of Presentation
      Mathematisches Forschungsinstitut Oberwolfach, Germany
    • Invited
  • [Remarks] Osamu Iyama's Home Page

    • URL

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

URL: 

Published: 2015-05-28  

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