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Study on representations of Morita algebras and homological dimensions

Research Project

Project/Area Number 16K05091
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Algebra
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

YAMAGATA Kunio  東京農工大学, 工学(系)研究科(研究院), 名誉教授 (60015849)

Research Collaborator Skowroński andrzej  
Kerner otto  
Fang ming  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords有限次元多元環 / フロベニウス多元環 / 加群 / 表現 / クイバー / 支配次元 / 準同型多元環 / 自己入射多元環 / 生成余生成素 / 大域次元 / 制御次元 / 国際研究者交流 / 森田多元環 / ホモロジー的次元
Outline of Final Research Achievements

We studied Frobenius algebras and Morita algebras over a field. We obtained module theoretical characterizations for some Frobenius algebras to be socle equivalent to Frobenius orbit algebras determined by algebras of finite global dimension. Moreover we got new characterizations of Morita algebras and algebras of non-zero dominant dimensions in terms of their canonical bimodules.

Academic Significance and Societal Importance of the Research Achievements

フロベニウス多元環の重要性は数学の様々な分野で認識されているが、その研究には大域次元が無限であるという困難さを伴う。本研究での成果は、研究の進んでいる有限大域次元の多元環とフロベニウス多元環との関連を明らかにするものであり、また森田多元環の研究を通して中山予想という半世紀以上に渡る未解決問題の解明に関わるものである。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (19 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (9 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 6 results) Book (1 results)

  • [Int'l Joint Research] シュツットガルト大学/ハインリッヒ・ハイネ大学(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 中国科学院/首都師範大学(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ニコラウス・コペルニクス大学(ポーランド)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] コペルニクス大学(ポーランド)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] シュツットガルト大学/ハインリッヒ・ハイネ大学(ドイツ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] 首都師範大学/中国科学院(中国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] コペルニクス大学(ポーランド)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] 中国科学院数学与系統科学研究院/首都師範大学(中国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] ハインリッヒ・ハイネ大学/シュツッツガルト大学(ドイツ)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Selfinjective algebras with hereditary stable slice2019

    • Author(s)
      Andrzej Skowronski, Kunio Yamagata
    • Journal Title

      Journal of Algebra

      Volume: 530 Pages: 146-162

    • DOI

      10.1016/j.jalgebra.2019.04.010

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Canonical bimodules and dominant dimension2017

    • Author(s)
      Ming Fang, Otto Kerner, Kunio Yamagata
    • Journal Title

      Transactions of American Mathematical Society

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] On selfinjective algebras socle equivalent to orbit algebras2018

    • Author(s)
      Kunio Yamagata
    • Organizer
      シュツットガルト大学代数高等セミナー
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Selfinjective orbit algebras induced from repetitive algebras2018

    • Author(s)
      Kunio Yamagata
    • Organizer
      Advances in Representation Theory of Algebras, Mexico City
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Indecomposable self-injective Hochschild extension algebras2017

    • Author(s)
      Kunio Yamagata
    • Organizer
      清華大学表現論セミナー
    • Place of Presentation
      北京(中国)
    • Year and Date
      2017-03-16
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Indecomposable self-injective Hochschild extension algebras2017

    • Author(s)
      Kunio Yamagata
    • Organizer
      首都師範大学代数と表現論セミナー
    • Place of Presentation
      北京(中国)
    • Year and Date
      2017-03-09
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Morita algebras and canonical bimodules2017

    • Author(s)
      山形邦夫
    • Organizer
      Advanced Representation Theory of Algebras VI: geometry and homology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On triviality of symmetric Hochschild extension algebras2017

    • Author(s)
      山形邦夫
    • Organizer
      Stuttgart大学高等代数セミナー
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Canonical bimodules of Morita algebras2016

    • Author(s)
      山形邦夫
    • Organizer
      The 49th Symposium on Ring Theory and Representation Theory
    • Place of Presentation
      大阪府立大学(大阪府・堺市)
    • Year and Date
      2016-08-31
    • Related Report
      2016 Research-status Report
  • [Book] Frobenius algebras II2017

    • Author(s)
      Andrzej Skowronski, Kunio Yamagata
    • Total Pages
      619
    • Publisher
      European Mathematical Society
    • ISBN
      9783037191743
    • Related Report
      2017 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2022-02-16  

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