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Comprehensive research on representation theory of orders

Research Project

Project/Area Number 16H03923
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Algebra
Research InstitutionThe University of Tokyo (2020, 2022)
Nagoya University (2016-2019)

Principal Investigator

Iyama Osamu  東京大学, 大学院数理科学研究科, 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, 理学部, 教授 (50436903)
Project Period (FY) 2016-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords(団)傾理論 / Cohen-Macaulay表現 / Auslander-Reiten理論 / 導来圏、三角圏、dg圏 / (Auslander-)Gorenstein環 / d有限表現型 / 非可換特異点解消 / 団代数 / g扇 / Grothendieck群 / 導来圏 / 特異圏 / 団圏 / 準傾複体 / Auslander正則環 / 自明拡大代数 / 整環 / 団理論 / 傾理論・団傾理論 / 三角圏・導来圏 / d単純系 / modifying加群 / cDV特異点 / 前射影多元環 / 傾ベクトル束 / 導来圏・三角圏 / Cohen-Macaulay加群 / 完全圏 / extriangulated category / Koszul多元環 / 傾対象 / ねじれ類 / 完備束 / 煉瓦 / Serre形式多元環 / Auslander-Gorenstein環 / Auslander対応 / d団傾部分圏 / 前d団傾部分圏 / Gorenstein modification / Auslander-Bridger理論
Outline of Final Research Achievements

We studied the representation theory of orders mainly from a point of view of tilting theory, CM (=Cohen-Macaulay) representations, and AR (=Auslander-Reiten) theory. In addition to the following main results, we obtained a number of new results.
(1) I gave an invited talk at the International Congress of Mathematicians 2018 on tilting theory and CM representations. We also published a book on Geigle-Lenzing complete intersections from AMS Memoir. (2) We made a great progress on a basic theory in tilting theory including torsion classes, reductions of triangulated categories, simple-minded collections, and so on. (3) We studied Auslander-Gorenstein algebras from a point of view of higher dimensional AR theory, and applied them to the study of non-commutative resolutions of singularities. We also made a systematic construction of d-representation-finite selfinjective algebras, and applied it to the study of the periodicity of trivial extension algebras.

Academic Significance and Societal Importance of the Research Achievements

環とは加法、減法、乗法の与えられた数体系の一般化であり、現代数学の重要な基本概念である。環の表現論は1970年代に確立された若い分野であり、中でもホモロジー代数学で基本的な導来圏を扱う傾理論と、様々な表現の圏構造を制御するAuslander-Reiten理論が重要である。環の表現論は、団(クラスター)代数・量子群の圏化や非可換特異点解消をはじめとして数学の諸分野で重要な役割を果たしている。中でも整環(order)の表現は、箙(quiver)の表現と可換環のCohen-Macaulay表現を結びつける重要な研究対象であり、本研究計画は整環の表現論を深化させることを目的としている。

Report

(6 results)
  • 2022 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (215 results)

All 2023 2022 2021 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (30 results) Journal Article (68 results) (of which Int'l Joint Research: 43 results,  Peer Reviewed: 67 results,  Open Access: 9 results,  Acknowledgement Compliant: 3 results) Presentation (106 results) (of which Int'l Joint Research: 64 results,  Invited: 83 results) Remarks (3 results) Funded Workshop (8 results)

  • [Int'l Joint Research] University of Glasgow/University of East Anglia/Lancaster University(英国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Nanjing University/NUIST(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] North Carolina State University/University of Kansas(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Toronto Scarborough/Universite du Quebec a Montreal(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] NTNU/Linkoeping University(ノルウェー)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Glasgow/University of East Anglia(英国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] The University of Kansas(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Nanjing University/Nanjing University of Inf. Sci. & Tech.(中国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Uppsala University(スウェーデン)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] University of Toronto(カナダ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] The University of Kansas/The University of Utah/North Carolina State University(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Glasgow/University of East Anglia(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Toronto Scarborough/Universite du Quebec a Montreal(カナダ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Universitaet Bonn/Universitaet Stuttgart(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Universite de Picardie Jules Verne(フランス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] North Carolina State University(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] University of Glasgow(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] University of Toronto/Universite du Quebec a Montreal(カナダ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Universitaet Stuttgart/Universitaet Bonn(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Nanjing University/Nanjing University of Inf. Sci. & Tech.(中国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] University of Kansas/University of Utah/North Carolina State University(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] University of Glasgow(英国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Universitaet Bonn(ドイツ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] NTNU(ノルウェー)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Nanjing University(中国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Positive Fuss-Catalan numbers and Simple-minded systems in negative Calabi-Yau categories2023

    • Author(s)
      Osamu Iyama, Haibo Jin
    • Journal Title

      Int. Math. Res. Not.

      Volume: -

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Lattice theory of torsion classes: Beyond $\tau$-tilting theory2023

    • Author(s)
      Laurent Demonet, Osamu Iyama, Nathan Reading, Idun Reiten, Hugh Thomas
    • Journal Title

      Trans. Amer. Math. Soc. Ser. B

      Volume: -

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Representation theory of Geigle-Lenzing complete intersections2023

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

      Mem. Amer. Math. Soc.

      Volume: -

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Auslander-Reiten theory in extriangulated categories2023

    • Author(s)
      Osamu Iyama, Hiroyuki Nakaoka, Yann Palu
    • Journal Title

      Trans. Amer. Math. Soc.

      Volume: -

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Distributive lattices and Auslander regular algebras2022

    • Author(s)
      Iyama Osamu、Marczinzik Rene
    • Journal Title

      Advances in Mathematics

      Volume: 398 Pages: 108233-108233

    • DOI

      10.1016/j.aim.2022.108233

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tilting theory for Gorenstein rings in dimension one2020

    • Author(s)
      Ragnar-Olaf Buchweitz, Osamu Iyama, Kota Yamaura
    • Journal Title

      Forum Math. Sigma

      Volume: 8

    • DOI

      10.1017/fms.2020.28

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Classifying $\tau$-tilting modules over the Auslander algebra of $K[x]/(x^n)$2020

    • Author(s)
      Osamu Iyama, Xiaojin Zhang
    • Journal Title

      J. Math. Soc. Japan

      Volume: 72 Issue: 3

    • DOI

      10.2969/jmsj/75117511

    • NAID

      130007879317

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quotients of triangulated categories and Equivalences of Buchweitz, Orlov and Amiot-Guo-Keller2020

    • Author(s)
      Osamu Iyama, Dong Yang
    • Journal Title

      Amer. J. Math.

      Volume: 142 Issue: 5 Pages: 1641-1659

    • DOI

      10.1353/ajm.2020.0041

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Gorenstein modifications and Q-Gorenstein rings2020

    • Author(s)
      H. Dao, O. Iyama, R. Takahashi, M. Wemyss
    • Journal Title

      J. Algebraic Geom.

      Volume: - Issue: 4 Pages: 729-751

    • DOI

      10.1090/jag/760

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Higher preprojective algebras, Koszul algebras, and superpotentials2020

    • Author(s)
      Grant, Joseph; Iyama, Osamu
    • Journal Title

      Compos. Math.

      Volume: 156 Issue: 12 Pages: 2588-2627

    • DOI

      10.1112/s0010437x20007538

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Osamu Iyama2020

    • Author(s)
      Erik Darpoe
    • Journal Title

      d-Representation-finite self-injective algebras

      Volume: 362 Pages: 1-50

    • DOI

      10.1016/j.aim.2019.106932

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Representation theory of Geigle-Lenzing complete intersections2020

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

      Mem. Amer. Math. Soc.

      Volume: 印刷中

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quotients of triangulated categories and Equivalences of Buchweitz, Orlov and Amiot--Guo―Keller2020

    • Author(s)
      Osamu Iyama, Dong Yang
    • Journal Title

      Amer. J. Math.

      Volume: 印刷中

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A categorical characterization of quantum projective spaces2020

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

      J. Noncommut. Geom.

      Volume: 印刷中

    • NAID

      120007168232

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the radius of the category of extensions of matrix factorizations2020

    • Author(s)
      Kaori Shimada; Ryo Takahashi
    • Journal Title

      Journal of Algebra

      Volume: 546 Pages: 566-579

    • DOI

      10.1016/j.jalgebra.2019.10.054

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Maximal Cohen-Macaulay modules that are not locally free on the punctured spectrum2020

    • Author(s)
      Toshinori Kobayashi; Justin Lyle; Ryo Takahashi
    • Journal Title

      Journal of Pure and Applied Algebra

      Volume: 224 Issue: 7 Pages: 106311-106311

    • DOI

      10.1016/j.jpaa.2020.106311

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Local rings with quasi-decomposable maximal ideal2020

    • Author(s)
      Saeed Nasseh; Ryo Takahashi
    • Journal Title

      Mathematical Proceedings of the Cambridge Philosophical Society

      Volume: 168 Issue: 2 Pages: 305-322

    • DOI

      10.1017/s0305004118000695

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A topology on the set of isomorphism classes of maximal Cohen--Macaulay modules2020

    • Author(s)
      Hiramatsu Naoya、Takahashi Ryo
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 148 Issue: 6 Pages: 2359-2369

    • DOI

      10.1090/proc/14965

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tilting Cohen-Macaulay representations2019

    • Author(s)
      Osamu Iyama
    • Journal Title

      Proceedings of the International Congress of Mathematicians--Rio de Janeiro 2018. Vol. II. Invited lectures

      Volume: - Pages: 125-162

    • DOI

      10.1142/9789813272880_0048

    • NAID

      120006554820

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Weighted Projective Lines and Rational Surface Singularities2019

    • Author(s)
      Osamu Iyama, Michael Wemyss
    • Journal Title

      Epijournal Geom. Algebrique

      Volume: 3

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the transitivity of degeneration of modules2019

    • Author(s)
      Ryo Takahashi
    • Journal Title

      Manuscripta Mathematica

      Volume: 159 Issue: 3-4 Pages: 431-444

    • DOI

      10.1007/s00229-018-1076-2

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the second rigidity theorem of Huneke and Wiegand2019

    • Author(s)
      Olgur Celikbas; Ryo Takahashi
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 147 Issue: 7 Pages: 2733-2739

    • DOI

      10.1090/proc/14564

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the Ideal Case of a Conjecture of Huneke and Wiegand2019

    • Author(s)
      Celikbas Olgur、Goto Shiro、Takahashi Ryo、Taniguchi Naoki
    • Journal Title

      Proceedings of the Edinburgh Mathematical Society

      Volume: 62 Issue: 3 Pages: 847-859

    • DOI

      10.1017/s0013091518000731

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ulrich modules over Cohen-Macaulay local rings with minimal multiplicity2019

    • Author(s)
      Toshinori Kobayashi; Ryo Takahashi
    • Journal Title

      The Quarterly Journal of Mathematics

      Volume: 70 Issue: 2 Pages: 487-507

    • DOI

      10.1093/qmath/hay055

    • NAID

      120006765139

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Two generalizations of Auslander-Reiten duality and applications2019

    • Author(s)
      Arash Sadeghi; Ryo Takahashi
    • Journal Title

      Illinois Journal of Mathematics

      Volume: 63 Issue: 2

    • DOI

      10.1215/00192082-7768744

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Associated primes and syzygies of linked modules2019

    • Author(s)
      Olgur Celikbas; Mohammad T. Dibaei; Mohsen Gheibi; Arash Sadeghi; Ryo Takahashi
    • Journal Title

      Journal of Commutative Algebra

      Volume: 11 Issue: 3

    • DOI

      10.1216/jca-2019-11-3-301

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rings whose ideals are isomorphic to trace ideals2019

    • Author(s)
      Toshinori Kobayashi; Ryo Takahashi
    • Journal Title

      Mathematische Nachrichten

      Volume: 292 Issue: 10 Pages: 2252-2261

    • DOI

      10.1002/mana.201800309

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Generation in singularity categories of hypersurfaces of countable representation type2019

    • Author(s)
      Tokuji Araya; Kei-ichiro Iima; Maiko Ono; Ryo Takahashi
    • Journal Title

      Archiv der Mathematik (Basel)

      Volume: 113 Issue: 6 Pages: 603-615

    • DOI

      10.1007/s00013-019-01374-x

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Auslander?Gorenstein algebras from Serre-formal algebras via replication2019

    • Author(s)
      Chan Aaron、Iyama Osamu、Marczinzik Ren
    • Journal Title

      Advances in Mathematics

      Volume: 345 Pages: 222-262

    • DOI

      10.1016/j.aim.2019.01.010

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Tilting modules over Auslander--Gorenstein algebras2019

    • Author(s)
      Osamu Iyama, Xiaojin Zhang
    • Journal Title

      Pacific J. Math.

      Volume: 298

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quotients of triangulated categories and Equivalences of Buchweitz, Orlov and Amiot--Guo--Keller2019

    • Author(s)
      Osamu Iyama, Dong Yang
    • Journal Title

      Amer. J. Math.

      Volume: 印刷中

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tilting Cohen-Macaulay representations2019

    • Author(s)
      Osamu Iyama
    • Journal Title

      Proceedings of the International Congress of Mathematicians (ICM 2018)

      Volume: 印刷中

    • NAID

      120006554820

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The classification of 3-dimensional noetherian cubic Calabi-Yau algebras2019

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

      Journal of Pure and Applied Algebra

      Volume: 223 Issue: 5 Pages: 1946-1965

    • DOI

      10.1016/j.jpaa.2018.08.009

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Applications and homological properties of local rings with decomposable maximal ideals2019

    • Author(s)
      Nasseh Saeed, Sather-Wagstaff Sean, Takahashi Ryo, VandeBogert Keller
    • Journal Title

      Journal of Pure and Applied Algebra

      Volume: 223 Issue: 3 Pages: 1272-1287

    • DOI

      10.1016/j.jpaa.2018.06.006

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Totally reflexive modules and Poincare series2019

    • Author(s)
      Gheibi Mohsen, Takahashi Ryo
    • Journal Title

      Journal of Algebra

      Volume: 520 Pages: 440-459

    • DOI

      10.1016/j.jalgebra.2018.10.040

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Remarks on dimensions of triangulated categories2019

    • Author(s)
      Aihara Takuma, Takahashi Ryo
    • Journal Title

      Journal of Algebra

      Volume: 521 Pages: 235-246

    • DOI

      10.1016/j.jalgebra.2018.12.001

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Degenerations over (A∞)-singularities and construction of degenerations over commutative rings2019

    • Author(s)
      Hiramatsu Naoya、Takahashi Ryo、Yoshino Yuji
    • Journal Title

      Journal of Algebra

      Volume: 525 Pages: 374-389

    • DOI

      10.1016/j.jalgebra.2018.12.031

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Openness of the Regular Locus and Generators for Module Categories2018

    • Author(s)
      Iyengar Srikanth B.、Takahashi Ryo
    • Journal Title

      Acta Mathematica Vietnamica

      Volume: 44 Issue: 1 Pages: 207-212

    • DOI

      10.1007/s40306-018-0294-8

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On steady non-commutative crepant resolutions2018

    • Author(s)
      Iyama Osamu、Nakajima Yusuke
    • Journal Title

      Journal of Noncommutative Geometry

      Volume: 12 Issue: 2 Pages: 457-471

    • DOI

      10.4171/jncg/283

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lattice structure of Weyl groups via representation theory of preprojective algebras2018

    • Author(s)
      Iyama Osamu、Reading Nathan、Reiten Idun、Thomas Hugh
    • Journal Title

      Compositio Mathematica

      Volume: 154 Issue: 6 Pages: 1269-1305

    • DOI

      10.1112/s0010437x18007078

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Noncommutative resolutions using syzygies2018

    • Author(s)
      Dao Hailong、Iyama Osamu、Iyengar Srikanth B.、Takahashi Ryo、Wemyss Michael、Yoshino Yuji
    • Journal Title

      Bulletin of the London Mathematical Society

      Volume: 51 Issue: 1 Pages: 43-48

    • DOI

      10.1112/blms.12210

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the vanishing of self extensions over Cohen-Macaulay local rings2018

    • Author(s)
      Araya Tokuji、Celikbas Olgur、Sadeghi Arash、Takahashi Ryo
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 146 Issue: 11 Pages: 4563-4570

    • DOI

      10.1090/proc/13944

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Auslander-Gorenstein algebras and precluster tilting2018

    • Author(s)
      Osamu Iyama and Oeyvind Solberg
    • Journal Title

      Advances in Mathematics

      Volume: 326 Pages: 200-240

    • DOI

      10.1016/j.aim.2017.11.025

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On steady non-commutative crepant resolutions2018

    • Author(s)
      Iyama Osamu, Nakajima Yusuke
    • Journal Title

      J. Noncommut. Geom.

      Volume: 印刷中

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lattice structure of Weyl groups via representation theory of preprojective algebras2018

    • Author(s)
      Iyama Osamu, Reading Nathan, Reiten Idun, Thomas Hugh
    • Journal Title

      Compos. Math.

      Volume: 印刷中

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the ideal case of a conjecture of Auslander and Reiten2018

    • Author(s)
      Celikbas Olgur、Iima Kei-ichiro、Sadeghi Arash、Takahashi Ryo
    • Journal Title

      Bulletin des Sciences Mathematiques

      Volume: 142 Pages: 94-107

    • DOI

      10.1016/j.bulsci.2017.09.005

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Geometric linkage and syzygies of modules2018

    • Author(s)
      Olgur Celikbas; Mohammad T. Dibaei; Mohsen Gheibi; Arash Sadeghi; Ryo Takahashi
    • Journal Title

      Journal of Commutative Algebra

      Volume: 印刷中

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the vanishing of self extensions over Cohen-Macaulay local rings2018

    • Author(s)
      Tokuji Araya; Olgur Celikbas; Arash Sadeghi; Ryo Takahashi
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 印刷中

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Silting reduction and Calabi--Yau reduction of triangulated categories2017

    • Author(s)
      Osamu Iyama, Dong Yang
    • Journal Title

      Trans. Amer. Math. Soc.

      Volume: 印刷中 Issue: 11 Pages: 7861-7898

    • DOI

      10.1090/tran/7213

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] τ -tilting finite algebras, bricks and g-vectors2017

    • Author(s)
      Laurent Demonet, Osamu Iyama, Gustavo Jasso
    • Journal Title

      Int. Math. Res. Not.

      Volume: 1 Issue: 3 Pages: 1-41

    • DOI

      10.1093/imrn/rnx135

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Higher Auslander correspondence for dualizing R-varieties2017

    • Author(s)
      Osamu Iyama, Gustavo Jasso
    • Journal Title

      Algebr. Represent. Theory

      Volume: 印刷中 Issue: 2 Pages: 335-354

    • DOI

      10.1007/s10468-016-9645-0

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Derived categories of N-complexes2017

    • Author(s)
      Osamu Iyama, Kiriko Kato and Jun-ichi Miyachi
    • Journal Title

      Journal of the London Mathematical Society

      Volume: 96 Issue: 3 Pages: 687-716

    • DOI

      10.1112/jlms.12084

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The classification of 3-Calabi-Yau algebras with 3 generators and 3 quadratic relations2017

    • Author(s)
      Mori Izuru and Smith S. Paul
    • Journal Title

      Math. Z.

      Volume: 287 Issue: 1-2 Pages: 215-241

    • DOI

      10.1007/s00209-016-1824-5

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Singularity categories and singular equivalences for resolving subcategories2017

    • Author(s)
      Matsui Hiroki、Takahashi Ryo
    • Journal Title

      Mathematische Zeitschrift

      Volume: 285 Issue: 1-2 Pages: 251-286

    • DOI

      10.1007/s00209-016-1706-x

    • NAID

      120006024328

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] When are n-syzygy modules n-torsionfree?2017

    • Author(s)
      Matsui Hiroki、Takahashi Ryo、Tsuchiya Yoshinao
    • Journal Title

      Archiv der Mathematik

      Volume: 108 Issue: 4 Pages: 351-355

    • DOI

      10.1007/s00013-017-1020-9

    • NAID

      120006318704

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the Auslander-Reiten conjecture for Cohen-Macaulay local rings2017

    • Author(s)
      Shiro Goto; Ryo Takahashi
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 印刷中 Issue: 8 Pages: 3289-3296

    • DOI

      10.1090/proc/13487

    • NAID

      120006343686

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Thick subcategories over isolated singularities2017

    • Author(s)
      Takahashi Ryo
    • Journal Title

      Pacific Journal of Mathematics

      Volume: 291 Issue: 1 Pages: 183-211

    • DOI

      10.2140/pjm.2017.291.183

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thick tensor ideals of right bounded derived categories2017

    • Author(s)
      Matsui Hiroki、Takahashi Ryo
    • Journal Title

      Algebra & Number Theory

      Volume: 11 Issue: 7 Pages: 1677-1738

    • DOI

      10.2140/ant.2017.11.1677

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structure of Irreducible Homomorphisms to/from Free Modules2017

    • Author(s)
      Nasseh Saeed、Takahashi Ryo
    • Journal Title

      Algebras and Representation Theory

      Volume: 21 Issue: 2 Pages: 471-485

    • DOI

      10.1007/s10468-017-9722-z

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Geometric linkage and syzygies of modules2017

    • Author(s)
      Olgur Celikbas, Mohammad T. Dibaei, Mohsen Gheibi, Arash Sadeghi, Ryo Takahashi
    • Journal Title

      Journal of Commutative Algebra

      Volume: 印刷中

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Thick subcategories over isolated singularities2017

    • Author(s)
      Ryo Takahashi
    • Journal Title

      Pacific Journal of Mathematics

      Volume: 印刷中

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reduction of triangulated categories and maximal modification algebras for cA_n singularities2016

    • Author(s)
      Osamu Iyama, Michael Wemyss
    • Journal Title

      J. Reine Angew. Math.

      Volume: 未定 Issue: 738 Pages: 149-202

    • DOI

      10.1515/crelle-2015-0031

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Lifting preprojective algebras to orders and categorifying partial flag varieties2016

    • Author(s)
      Laurent Demonet, Osamu Iyama
    • Journal Title

      Algebra Number Theory

      Volume: 10 Issue: 7 Pages: 1527-1579

    • DOI

      10.2140/ant.2016.10.1527

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stable Categories of Graded Maximal Cohen-Macaulay Modules over Noncommutative Quotient Singularities2016

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

      Adv. Math.

      Volume: 297 Pages: 54-92

    • DOI

      10.1016/j.aim.2016.04.009

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ulrich ideals and almost Gorenstein rings2016

    • Author(s)
      Shiro Goto, Ryo Takahashi, and Naoki Taniguchi
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 144 Issue: 7 Pages: 2811-2823

    • DOI

      10.1090/proc/12970

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Perfect linkage of Cohen-Macaulay modules over Cohen-Macaulay rings2016

    • Author(s)
      Kei-ichiro Iima, Ryo Takahashi
    • Journal Title

      Journal of Algebra

      Volume: 458 Pages: 134-155

    • DOI

      10.1016/j.jalgebra.2016.03.014

    • NAID

      120005889991

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Extension closedness of syzygies and local Gorensteinness of commutative rings2016

    • Author(s)
      Shiro Goto, Ryo Takahashi
    • Journal Title

      Algebras and Representation Theory

      Volume: 19 Issue: 3 Pages: 511-521

    • DOI

      10.1007/s10468-015-9585-0

    • NAID

      120005889992

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Annihilation of cohomology, generation of modules and finiteness of derived dimension2016

    • Author(s)
      Abdolnaser Bahlekeh, Ehsan Hakimian, Shokrollah Salarian, Ryo Takahashi
    • Journal Title

      The Quarterly Journal of Mathematics

      Volume: 67 Issue: 3 Pages: 387-404

    • DOI

      10.1093/qmath/haw015

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Complete g-fans of rank 22023

    • Author(s)
      Osamu Iyama
    • Organizer
      Flash Talks in Representation Theory, Norwegian University of Science and Technology
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fans in tilting theory: rank 2 case2023

    • Author(s)
      Osamu Iyama
    • Organizer
      Representation Theory of Quivers and Finite-Dimensional Algebras, Mathematisches Forschungsinstitut Oberwolfach
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Singularity categories and cluster categories2022

    • Author(s)
      Osamu Iyama
    • Organizer
      Geometric and homological methods in representation theory, Lancaster University
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cohen-Macaulay representations, Singularity categories and Cluster categories2022

    • Author(s)
      Osamu Iyama
    • Organizer
      東京可換環論セミナー
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 団代数と傾理論2022

    • Author(s)
      Osamu Iyama
    • Organizer
      Encounter with mathematics, 第75回Cluster Algebras, 中央大学
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Singularity categories and Cluster categories2022

    • Author(s)
      Osamu Iyama
    • Organizer
      Interactions between Algebraic Geometry and Noncommutative Algebra, Mathematisches Forschungsinstitut Oberwolfach
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Auslander-Gorenstein rings revisited(3回講演)2022

    • Author(s)
      Osamu Iyama
    • Organizer
      Online workshop on higher dimensional homological algebras, IPM-Isfahan and University of Isfahan
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Singularity categories and cluster categories2022

    • Author(s)
      Osamu Iyama
    • Organizer
      Bridges between representation theory and algebraic geometry: Singularities, friezes and cluster categories, University of Leeds
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 団代数と傾理論2022

    • Author(s)
      Osamu Iyama
    • Organizer
      東京理科大学談話会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Quiver representations and Cohen-Macaulay representations2022

    • Author(s)
      Osamu Iyama
    • Organizer
      Algebra days in Paris in honor of Bernhard Keller, Institut Henri Poincare
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Realizing stable categories of Cohen-Macaulay modules as cluster categories2022

    • Author(s)
      Osamu Iyama
    • Organizer
      第43回可換環論シンポジウム, 大阪大学
    • Related Report
      2020 Annual Research Report
  • [Presentation] 特異傾理論入門:Quiver表現とCohen-Macaulay表現2022

    • Author(s)
      Osamu Iyama
    • Organizer
      名古屋大学集中講義
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 傾理論と前射影代数2021

    • Author(s)
      Osamu Iyama
    • Organizer
      京都大学数学教室・集中講義
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 特異圏の傾理論2021

    • Author(s)
      Osamu Iyama
    • Organizer
      京都大学数学教室・談話会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] (3回講演)Introduction to silting theory, Polytopes in silting theory, Silting theory of Noetherian algebras2021

    • Author(s)
      Osamu Iyama
    • Organizer
      Network on Silting Theory, Inaugural lecture series
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Periodic trivial extension algebras and fractionally Calabi-Yau algebras2021

    • Author(s)
      Osamu Iyama
    • Organizer
      FD seminar
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory of contracted preprojective algebras and cluster tilting theory of cDV singularities2021

    • Author(s)
      Osamu Iyama
    • Organizer
      Braids, mutations and twists in algebra and geometry, Uppsala University
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Wall-chamber structure in Grothendieck group and canonical decomposition2021

    • Author(s)
      Osamu Iyama
    • Organizer
      Cluster Algebras and Related Topics, Morningside Center of Mathematics
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory of contracted preprojective algebras and cDV singularities2020

    • Author(s)
      Osamu Iyama
    • Organizer
      Paris algebra seminar
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Simple-minded systems in cluster categories and generalized cluster complexes2020

    • Author(s)
      Osamu Iyama
    • Organizer
      Cluster algebras 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Contracted preprojective algebras, Coxeter groups and cDV singularities2020

    • Author(s)
      Osamu Iyama
    • Organizer
      Birthday Colloquium for Bill Crawley-Boevey, ICMS
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 傾理論とその仲間たち2020

    • Author(s)
      Osamu Iyama
    • Organizer
      東京大学大学院数理科学研究科・談話会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 自由性と単純性:Konig-Yang 対応を通して2020

    • Author(s)
      Osamu Iyama
    • Organizer
      第3回数理新人セミナー, 名古屋大学
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 因子類群の中のMCM点について2020

    • Author(s)
      高橋 亮
    • Organizer
      霧島可換環論セミナー, 国分パークプラザ
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 階数1の極大Cohen-Macaulay加群の個数の有限性について2020

    • Author(s)
      高橋 亮
    • Organizer
      第21回岡山可換代数表現セミナー (OSCAR)&吉野雄二先生退職記念集会, 岡山大学
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Cluster tilting in projective geometry2019

    • Author(s)
      Osamu Iyama
    • Organizer
      Ragnar's Ramification in Algebra and Geometry Emerging Workshop, Fields Institute, Toronto, Canada
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory of preprojective algebras and Cohen-Macaulay modules (3 lectures)2019

    • Author(s)
      Osamu Iyama
    • Organizer
      Two weeks of silting, University of Stuttgart, Germany
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory of contracted preprojective algebras2019

    • Author(s)
      Osamu Iyama
    • Organizer
      Workshop on quiver varieties and representation theory, CRM, Montreal, Canada
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Radical layers of representable functors, revisited2019

    • Author(s)
      Osamu Iyama
    • Organizer
      Homological methods and Tilting theory of Finite Dimensional algebras, University of Iowa, U.S.A.
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Radical layers of representable functors, revisited2019

    • Author(s)
      Osamu Iyama
    • Organizer
      Seminario de Representaciones de Algebras, UNAM, Mexico city, Mexico
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cohen-Macaulay DG modules and Calabi-Yau configuration, after H. Jin2019

    • Author(s)
      Osamu Iyama
    • Organizer
      Algebraic Representation Theory and Related Topics, Tsinghua Sanya International Mathematics Forum, China
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tilting theory of contracted preprojective algebras and cDV singularities2019

    • Author(s)
      Osamu Iyama
    • Organizer
      2019 Noncommutative Algebraic Geometry Shanghai Workshop, Shanghai Center for Mathematical Sciences, Shanghai, China
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory for Gorenstein rings in dimension one2019

    • Author(s)
      Osamu Iyama
    • Organizer
      Algebra Seminar, Shanghai Jiao Tong University, Shanghai, China
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory of contracted preprojective algebras and cDV singularities2019

    • Author(s)
      Osamu Iyama
    • Organizer
      第41回可換環論シンポジウム, 倉敷シーサイドホテル
    • Related Report
      2019 Annual Research Report
  • [Presentation] Tilting modules and torsion theories revisited2019

    • Author(s)
      Osamu Iyama
    • Organizer
      第25回静岡代数学セミナーおよび星野光男氏の追悼研究集会, 静岡大学,
    • Related Report
      2019 Annual Research Report
  • [Presentation] Noncommutative Matrix Factorizations and Knorrer’s Periodicity Theorem2019

    • Author(s)
      Izuru Mori
    • Organizer
      第24回静岡代数学セミナー, 静岡大学
    • Related Report
      2019 Annual Research Report
  • [Presentation] Noncommutative Matrix Factorizations and Knorrer's Periodicity Theorem2019

    • Author(s)
      Izuru Mori
    • Organizer
      第8回日中韓環論国際シンポジウム, 名古屋大学
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Noncommutative Graded Knorrer's Periodicity Theorem2019

    • Author(s)
      Izuru Mori, Kenta Ueyama
    • Organizer
      日本数学会2019年度秋季総合分科会, 金沢大学
    • Related Report
      2019 Annual Research Report
  • [Presentation] Zariski spectra of commutative rings and Balmer spectra of tensor triangulated categories2019

    • Author(s)
      Ryo Takahashi
    • Organizer
      Unversita di Verona, Verona, Italy
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 可換環の表現論への誘い2019

    • Author(s)
      高橋 亮
    • Organizer
      数理科学特別講義C,G, 大阪府立大学
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Generalizations of Ulrich modules and rigidity theorems2019

    • Author(s)
      Olgur Celikbas; Justin Lyle; Ryo Takahashi; Yongwei Yao
    • Organizer
      AMS Fall Central Sectional Meeting, Special Session on Homological and Characteristic p>0 Methods in Commutative Algebra, University of Wisconsin-Madison, Madison, WI, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quasi-projective dimension2019

    • Author(s)
      Mohsen Gheibi; David A. Jorgensen; Ryo Takahashi
    • Organizer
      AMS Fall Southeastern Sectional Meeting, Special Session on Homological Methods in Algebra, University of Florida, Gainesville, FL, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On the second rigidity theorem of Huneke and Wiegand2019

    • Author(s)
      Olgur Celikbas; Ryo Takahashi
    • Organizer
      AMS Fall Southeastern Sectional Meeting, Special Session on Homological Methods in Algebra, University of Florida, Gainesville, FL, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Local cohomology and coherent subsets2019

    • Author(s)
      Ryo Takahashi
    • Organizer
      Weakly Seminar on Commutative Algebra, VIASM, Hanoi, Vietnam
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A spectrum of a triangulated category that is not necessarily tensor-triangulated2019

    • Author(s)
      Ryo Takahashi
    • Organizer
      MALGA, University of Verona
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cohen-Macaulay rings of finite CM+ representation type2019

    • Author(s)
      Ryo Takahashi
    • Organizer
      Algebra Seminar, University of Texas at Arlington, Arlington, TX, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 階数1の極大Cohen-Macaulay加群の張る錐について2019

    • Author(s)
      高橋 亮
    • Organizer
      東京可換環論セミナー, 東京大学
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Cones spanned by maximal Cohen-Macaulay modules of rank one2019

    • Author(s)
      Ryo Takahashi
    • Organizer
      名古屋大学環論表現論セミナー, 名古屋大学
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Resolving subcategories and totally reflexive modules (分解部分圏と全反射加群)2019

    • Author(s)
      高橋 亮
    • Organizer
      第25回静岡代数学セミナー&星野光男氏追悼研究集会, 静岡大学
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 有限CM+表現型のCohen-Macaulay局所環2019

    • Author(s)
      高橋 亮
    • Organizer
      第32回可換環論セミナー, 弘前大学
    • Related Report
      2019 Annual Research Report
  • [Presentation] Modules of finite projective quasi-dimension2019

    • Author(s)
      高橋 亮
    • Organizer
      第41回可換環論シンポジウム, 倉敷シーサイドホテル
    • Related Report
      2019 Annual Research Report
  • [Presentation] Tilting theory for Gorenstein rings in dimension one2019

    • Author(s)
      Osamu Iyama
    • Organizer
      Interactions between commutative algebra, representation theory, and algebraic geometry, A conference in memoriam Ragnar-Olaf Buchweitz, University of Muenster, Muenster, Germany
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Noncommutative Matrix Factorizations2019

    • Author(s)
      Izuru Mori
    • Organizer
      AMS Sectional Meeting “Interactions between Noncommutative Algebra and Noncommutative Algebraic Geometry”, University of Hawaii at Manoa, Honolulu, Hawaii, U.S.A.
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cohomology annihilators and Jacobian ideals2019

    • Author(s)
      Ryo Takahashi
    • Organizer
      Algebra and Number Theory Seminar, University of Mississippi, Oxford, MS, USA
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Cohen-Macaulay rings of finite CM+ representation type2019

    • Author(s)
      Ryo Takahashi
    • Organizer
      Algebra Seminar, University of Texas at Arlington
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      Osamu Iyama
    • Organizer
      Higher homological algebra and cluster tilting, 大阪府立大学
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Tilting theory for Gorenstein rings in dimension one2018

    • Author(s)
      Osamu Iyama
    • Organizer
      特異点論月曜セミナー, 日本大学
    • Related Report
      2018 Annual Research Report
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      Osamu Iyama
    • Organizer
      International Congress of Mathematicians 2018 (ICM 2018), Rio Centro convention center, Rio de Janeiro, Brazil
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Auslander-Reiten theory in extriangulated categories2018

    • Author(s)
      Osamu Iyama
    • Organizer
      Workshop and 18th International Conference on Representations of Algebras (ICRA 2018), Czech Technical University, Prague, Czech Republic
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      Osamu Iyama
    • Organizer
      城崎代数幾何学シンポジウム2018, 城崎国際アートセンター
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Lattice theory of torsion classes beyond τ-tilting theory2018

    • Author(s)
      Osamu Iyama
    • Organizer
      Stability Conditions and Representation Theory of Finite-Dimensional Algebras, Casa Matematica Oaxaca (CMO), Oaxaca, Mexico
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory for Gorenstein rings in dimension one2018

    • Author(s)
      Osamu Iyama
    • Organizer
      代数幾何学セミナー, 京都大学
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Auslander algebras for Cohen-Macaulay modules2018

    • Author(s)
      Osamu Iyama
    • Organizer
      第40回可換環論シンポジウム, レクトーレ葉山
    • Related Report
      2018 Annual Research Report
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      Osamu Iyama
    • Organizer
      Conference on Algebraic Representation Theory, Tongji University, Shanghai, China
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Noncommutative Matrix Factorizations2018

    • Author(s)
      Izuru Mori
    • Organizer
      第20回岡山可換代数表現セミナー, 岡山大学
    • Related Report
      2018 Annual Research Report
  • [Presentation] Tilting Theory in Noncommutative Algebraic Geometry2018

    • Author(s)
      Izuru Mori
    • Organizer
      Higher homological algebra and cluster tilting, 大阪府立大学
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] When is every ideal isomorphic to some trace ideal?2018

    • Author(s)
      Ryo Takahashi
    • Organizer
      KUMUNU 2018, University of Kansas, Lawrence, KS, USA
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Flat ring epimorphisms of commutative noetherian rings2018

    • Author(s)
      Ryo Takahashi
    • Organizer
      Commutative Algebra Seminar, University of Nebraska, Lincoln, NE, USA
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Transitivity of degeneration of modules2018

    • Author(s)
      Ryo Takahashi
    • Organizer
      Workshop and 18th International Conference on Representations of Algebras (ICRA 2018), Czech Technical University, Prague, Czech Republic
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Flat epimorphisms of commutative noetherian rings2018

    • Author(s)
      Ryo Takahashi
    • Organizer
      第40回可換環論シンポジウム, レクトーレ葉山湘南国際村
    • Related Report
      2018 Annual Research Report
  • [Presentation] Preprojective algebras and Cluster categories2018

    • Author(s)
      Osamu Iyama
    • Organizer
      Cluster Algebras: twenty years on, CIRM, Luminy, France
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      Osamu Iyama
    • Organizer
      International Congress of Mathematicians 2018 (ICM 2018)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 可換環のZariskiスペクトラムとテンソル三角圏のBalmerスペクトラム2018

    • Author(s)
      Ryo Takahashi
    • Organizer
      第8回(非)可換代数とトポロジー
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Preprojective algebras and Calabi-Yau algebras2017

    • Author(s)
      Osamu Iyama
    • Organizer
      Subfactors, Higher Geometry, Higher twists and Almost Calabi-Yau Algebras
    • Place of Presentation
      Isaac Newton Institute, University of Cambridge, U.K.
    • Year and Date
      2017-03-28
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cohen-Macaulay modules over Gorenstein local rings2017

    • Author(s)
      Ryo Takahashi
    • Organizer
      Seminar Course Homological Algebra (3 Lectures)
    • Place of Presentation
      Universita di Verona, Verona, Italy
    • Year and Date
      2017-03-08
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Lattice theory of torsion classes2017

    • Author(s)
      Osamu Iyama
    • Organizer
      Idun 75, Norwegian University of Science and Technology, Trondheim, Norway
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lattice theory in derived categories2017

    • Author(s)
      Osamu Iyama
    • Organizer
      Algebraic Analysis and Representation Theory in honor of professor Masaki Kashiwara's 70th birthday, RIMS, Kyoto, Japan.
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lattice theory of torsion classes2017

    • Author(s)
      Osamu Iyama
    • Organizer
      International Workshop on Cluster Algebras and Related Topics, Chern Institute of Mathematics, Nankai University, Tianjin, China
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Geigle-Lenzing complete intersections and Tate resolutions2017

    • Author(s)
      Osamu Iyama
    • Organizer
      Prospects for Commutative Algebra, Hotel Nikko Osaka, Osaka, Japan
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Geigle-Lenzing complete intersections and Tate resolutions2017

    • Author(s)
      Osamu Iyama
    • Organizer
      Matrix factorisations and related topics, International Centre for Mathematical Sciences, Edinburgh, U.K.
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Auslander-Gorenstein algebras from Serre-formal algebras via replication2017

    • Author(s)
      Osamu Iyama
    • Organizer
      Advances in Representation Theory of Algebras VI: Geometry and Homology, CIRM, Luminy, France
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quotients of triangulated categories and theorems of Buchweitz, Orlov and Amiot-Guo-Keller2017

    • Author(s)
      Osamu Iyama
    • Organizer
      Noncommutative Algebraic Geometry and Related Topics, RIMS, Kyoto, Japan
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory for Gorenstein rings in dimension one2017

    • Author(s)
      Osamu Iyama
    • Organizer
      50th symposium on Ring Theory and Representation Theory, Yamanashi University, Japan
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Representation theory of Geigle-Lenzing complete intersections2017

    • Author(s)
      Osamu Iyama
    • Organizer
      Paris algebra seminar, Institut Henri Poincare, Paris, France
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Tilting theory for Cohen-Macaulay modules over Gorenstein rings in dimension one2017

    • Author(s)
      Osamu Iyama
    • Organizer
      Algebres amassees et theorie des representations, Universite de Caen, Caen, France
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Hypersurface singularities and 2-hereditary algebras2017

    • Author(s)
      Osamu Iyama
    • Organizer
      39th symposium on Commutative Algebra, RIMS, Kyoto, Japan
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Noncommutative quotient singularities2017

    • Author(s)
      Izuru Mori
    • Organizer
      第62回代数学シンポジウム
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] A categorical characterization of a quantum projective space2017

    • Author(s)
      Izuru Mori
    • Organizer
      Matrix factorisations and related topics, International Centre for Mathematical Sciences, Edinburgh, U.K.
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The category of maximal Cohen-Macaulay modules2017

    • Author(s)
      Ryo Takahashi
    • Organizer
      MSRI Summer Graduate School
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Local rings with quasi-decomposable maximal ideal and classification of thick subcategories2017

    • Author(s)
      Ryo Takahashi
    • Organizer
      Prospects for Commutative Algebra, Hotel Nikko Osaka, Osaka, Japan
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Thick subcategories of the singularity category of a local ring with quasi-decomposable maximal ideal2017

    • Author(s)
      Ryo Takahashi
    • Organizer
      Third Pacific Rim Mathematical Association (PRIMA) Congress, Special Sesion Commutative Algebra Homological and Combinatorial Methods
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 可換環の右有界導来圏のテンソル構造とBalmer spectrum2017

    • Author(s)
      Ryo Takahashi
    • Organizer
      第62回代数学シンポジウム
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 可換環論におけるホモロジカル予想2017

    • Author(s)
      Ryo Takahashi
    • Organizer
      可換環論と数論幾何の新展開~ホモロジカル予想を通じて~
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Noncommutative resolutions using syzygies2016

    • Author(s)
      Osamu Iyama
    • Organizer
      第38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
      2016-11-20
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterization of regular local rings and generation of their residue fields2016

    • Author(s)
      Ryo Takahashi
    • Organizer
      Japan-Vietnam joint workshop on commutative algebra
    • Place of Presentation
      明治大学
    • Year and Date
      2016-09-23
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] m-Koszul AS-regular Algebras and Twisted Superpotentials2016

    • Author(s)
      Izuru Mori
    • Organizer
      Bridges between Noncommutative Algebras and Algebraic Geometry
    • Place of Presentation
      Banff International Research Station, Banff, AB, Canada
    • Year and Date
      2016-09-16
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quasi-hereditary rings and non-commutative resolutions2016

    • Author(s)
      Osamu Iyama
    • Organizer
      49th symposium on Ring Theory and Representation Theory
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2016-09-02
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Balmer spectra of right bounded derived categories of commutative rings2016

    • Author(s)
      Ryo Takahashi
    • Organizer
      Commutative Algebra Seminar
    • Place of Presentation
      University of Utah, Salt Lake City UT, USA
    • Year and Date
      2016-09-02
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Finiteness of global dimension of endomorphism algebras2016

    • Author(s)
      Osamu Iyama
    • Organizer
      XVII International Conference on Representations of Algebras (ICRA 2016)
    • Place of Presentation
      Syracuse University, USA
    • Year and Date
      2016-08-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thick tensor ideals of right bounded derived categories of commutative rings2016

    • Author(s)
      Ryo Takahashi
    • Organizer
      XVII International Conference on Representations of Algebras (ICRA 2016)
    • Place of Presentation
      Syracuse University, USA
    • Year and Date
      2016-08-10
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory for Gorenstein rings in dimension one2016

    • Author(s)
      Osamu Iyama
    • Organizer
      可換環論セミナー
    • Place of Presentation
      明治大学
    • Year and Date
      2016-07-16
    • Related Report
      2016 Annual Research Report
  • [Presentation] Quotients of triangulated categories and theorems of Buchweitz, Orlov and Amiot-Guo-Keller2016

    • Author(s)
      Osamu Iyama
    • Organizer
      代数幾何・複素幾何セミナー
    • Place of Presentation
      大阪大学
    • Year and Date
      2016-07-06
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] McKay Correspondence and Beilinson Correspondence for AS-regular Algebras2016

    • Author(s)
      Izuru Mori
    • Organizer
      Non-commutative crepant resolutions, Ulrich modules and generalizations of the McKay correspondence
    • Place of Presentation
      数理解析研究所、京都大学
    • Year and Date
      2016-06-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Higher preprojective algebras and Cohen-Macaulay representations2016

    • Author(s)
      Osamu Iyama
    • Organizer
      Non-commutative crepant resolutions, Ulrich modules and generalizations of the McKay correspondence
    • Place of Presentation
      数理解析研究所、京都大学
    • Year and Date
      2016-06-14
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Introduction to Cohen-Macaulay representation theory2016

    • Author(s)
      Ryo Takahashi
    • Organizer
      Non-commutative crepant resolutions, Ulrich Modules and generalizations of the McKay correspondence
    • Place of Presentation
      数理解析研究所、京都大学
    • Year and Date
      2016-06-14
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lattice structure of preprojective algebras and Weyl groups2016

    • Author(s)
      Osamu Iyama
    • Organizer
      Algebra Seminar
    • Place of Presentation
      Norwegian University of Science and Technology, Trondheim, Norway
    • Year and Date
      2016-06-01
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Remarks] Osamu Iyama

    • URL

      https://www.ms.u-tokyo.ac.jp/~iyama/index.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] Osamu Iyama's Home Page

    • URL

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

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Remarks] Osamu Iyama's Home Page

    • URL

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

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
  • [Funded Workshop] Tokyo-Nagoya Algebra Seminar (online)2020

    • Related Report
      2020 Annual Research Report
  • [Funded Workshop] Cluster Algebras, RIMS2019

    • Related Report
      2019 Annual Research Report
  • [Funded Workshop] The 8th China-Japan-Korea International Symposium on Ring Theory, Nagoya University2019

    • Related Report
      2019 Annual Research Report
  • [Funded Workshop] Summer School on DG theory and Derived Categories, Nagoya University2019

    • Related Report
      2019 Annual Research Report
  • [Funded Workshop] Algebraic Representation Theory and Related Topics, Tsinghua Sanya International Mathematics Forum2019

    • Related Report
      2019 Annual Research Report
  • [Funded Workshop] Representation Theory of Quivers and Finite Dimensional Algebras2017

    • Place of Presentation
      Mathematisches Forschungsinstitut Oberwolfach, Germany
    • Year and Date
      2017-02-19
    • Related Report
      2016 Annual Research Report
  • [Funded Workshop] 49th symposium on Ring Theory and Representation Theory2016

    • Place of Presentation
      大阪府立大学
    • Year and Date
      2016-08-31
    • Related Report
      2016 Annual Research Report
  • [Funded Workshop] Non-commutative crepant resolutions, Ulrich modules and generalizations of the McKay correspondence2016

    • Place of Presentation
      数理解析研究所、京都大学
    • Year and Date
      2016-06-13
    • Related Report
      2016 Annual Research Report

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Published: 2016-04-21   Modified: 2024-01-30  

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