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Formation and development on the theory of almost Gorenstein rings

Research Project

Project/Area Number 18K03227
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 11010:Algebra-related
Research InstitutionMeiji University

Principal Investigator

Matsuoka Naoyuki  明治大学, 理工学部, 専任准教授 (80440155)

Co-Investigator(Kenkyū-buntansha) 後藤 四郎  明治大学, 研究・知財戦略機構(生田), 研究推進員(客員研究員) (50060091)
チャン ティフン  明治大学, 研究・知財戦略機構(生田), 研究推進員(客員研究員) (00649824)
Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsCohen-Macaulay環 / Gorenstein環 / almost Gorenstein環 / 数値半群環 / 擬フロベニウス数 / 極小自由分解 / 正準加群 / stretched局所環 / 擬ゴレンシュタイン環 / 定義イデアル / コーエン・マコーレー環 / ゴレンシュタイン環 / 概ゴレンシュタイン環 / Rees代数 / 可換環論 / 概Gorenstein環
Outline of Final Research Achievements

The concept of almost Gorenstein rings was first considered to fill the gap between Cohen-Macaulay rings and Gorenstein rings. Nowadays, the concept of 2-almost Gorenstein rings and other generalizations of almost Gorenstein rings are being introduced progressively. The scope of what should be called the pseudo-Gorenstein ring theory is expanding.
In this research project, we have been engaged in analyzing various pseudo-Gorenstein properties of one-dimensional Cohen-Macaulay local rings, especially numerical semigroup rings, which are the basis of pseudo-Gorenstein ring theories. We have found that the almost Gorenstein and 2-almost Gorenstein properties of numerical semigroup rings, which are defined by 2-minors of a certain matrix, can be characterized by the fact that pseud-Frobenius numbers form an arithmetic sequence.

Academic Significance and Societal Importance of the Research Achievements

非Gorenstein環の中でもGorensteinに近い構造とはいかなるものかを知ることが概Gorenstein環論の目的であるが,このことは,Cohen-Macaulay環を精密に分類するという大目標のみならず,Gorenstein性の持つ性質,例えばその美しい対称性が持つ意義をさらに明確にすることも期待され,可換環論のみならず代数幾何学,特異点論,表現論,組合せ論などの関連諸分野への波及効果も期待される。本研究は主に1次元の局所環を対象としているが,これらの理論の多くが1次元に帰着されることを考えると,当該研究分野の基盤構築に寄与したと判断する。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (22 results)

All 2023 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (16 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 13 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Int'l Joint Research] West Virginia University/North Dakota State University(米国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] When are the rings I:I Gorenstein?2023

    • Author(s)
      Naoki Endo, Shiro Goto, Shin-ichiro Iai, and Naoyuki Matsuoka
    • Journal Title

      Communications in Algebra

      Volume: 51 Issue: 4 Pages: 1721-1734

    • DOI

      10.1080/00927872.2022.2141764

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 数値半群環のstretched性に関するテストエレメントについて2023

    • Author(s)
      生熊克健, 松岡直之
    • Journal Title

      明治大学理工学部研究報告

      Volume: 57

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the ubiquity of Arf rings2022

    • Author(s)
      E. Celikbas, O. Celikbas, C. Ciuperca, N. Endo, S. Goto, R. Isobe, N. Matsuoka
    • Journal Title

      Journal of Commutative Algebra

      Volume: -

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the weakly Arf (S_2)-ifications of Noetherian rings2022

    • Author(s)
      N. Endo, S. Goto, S.-i. Iai, N. Matsuoka
    • Journal Title

      arXiv:2204.12132

      Volume: -

    • Related Report
      2021 Research-status Report
  • [Journal Article] When are the rings I:I Gorenstein?2021

    • Author(s)
      N. Endo, S. Goto, S.-i. Iai, N. Matsuoka
    • Journal Title

      arXiv:2111.13338

      Volume: -

    • Related Report
      2021 Research-status Report
  • [Journal Article] Ulrich ideals in the ring k[[t^5, t^{11}]]2021

    • Author(s)
      N. Endo, S. Goto, S.-i. Iai, N. Matsuoka
    • Journal Title

      arXiv:2111.01085

      Volume: -

    • Related Report
      2021 Research-status Report
  • [Journal Article] Numerical Semigroup Rings of Maximal Embedding Dimension with Determinantal Defining Ideals2020

    • Author(s)
      Van Kien Do、Matsuoka Naoyuki
    • Journal Title

      Springer INdAM Series

      Volume: 40 Pages: 185-196

    • DOI

      10.1007/978-3-030-40822-0_12

    • ISBN
      9783030408213, 9783030408220
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Efficient generation of ideals in core subalgebras of the polynomial ring $k[t]$ over a field $k$2020

    • Author(s)
      Endo Naoki、Goto Shiro、Matsuoka Naoyuki、Yamamoto Yuki
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 148 Issue: 8 Pages: 3283-3292

    • DOI

      10.1090/proc/15032

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Correspondence between trace ideals and birational extensions with application to the analysis of the Gorenstein property of rings2020

    • Author(s)
      Goto Shiro、Isobe Ryotaro、Kumashiro Shinya
    • Journal Title

      Journal of Pure and Applied Algebra

      Volume: 224 Issue: 2 Pages: 747-767

    • DOI

      10.1016/j.jpaa.2019.06.008

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Generalized Gorenstein Arf rings2019

    • Author(s)
      Ela Celikbas, Olgur Celikbas, Shiro Goto, and Naoki Taniguchi
    • Journal Title

      Ark. Mat.

      Volume: 57 Issue: 1 Pages: 35-53

    • DOI

      10.4310/arkiv.2019.v57.n1.a3

    • Related Report
      2019 Research-status 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 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Residually faithful modules and the Cohen–Macaulay type of idealizations2019

    • Author(s)
      Shiro Goto and Nguyen Thi Hong Loan
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 71 Issue: 4 Pages: 1269-1291

    • DOI

      10.2969/jmsj/80398039

    • NAID

      130007733379

    • ISSN
      0025-5645, 1881-1167, 1881-2333
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the almost Gorenstein property in Rees algebras of contracted ideals2019

    • Author(s)
      Shiro Goto, Naoyuki Matsuoka, Naoki Taniguchi, Ken-ichi Yoshida
    • Journal Title

      Kyoto J. Math.

      Volume: 59 Issue: 4 Pages: 769-785

    • DOI

      10.1215/21562261-2018-0001

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Sally modules of canonical ideals in dimension one and 2-AGL rings2019

    • Author(s)
      Chau Tran Do Minh、Goto Shiro、Kumashiro Shinya、Matsuoka Naoyuki
    • Journal Title

      Journal of Algebra

      Volume: 521 Pages: 299-330

    • DOI

      10.1016/j.jalgebra.2018.11.023

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pseudo-Frobenius numbers versus generation of defining ideals in numerical semigroup rings2018

    • Author(s)
      Shiro Goto, Do Van Kien, Naoyuki Matsuoka, Hoang Le Truong
    • Journal Title

      J. Algebra

      Volume: 508 Pages: 1-15

    • DOI

      10.1016/j.jalgebra.2018.04.025

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The almost Gorenstein Rees algebras of pg-ideals, good ideals, and powers of the maximal ideals2018

    • Author(s)
      Shiro Goto, Naoyuki Matsuoka, Naoki Taniguchi, Ken-ichi Yoshida
    • Journal Title

      Michigan Math. J.

      Volume: 67 Issue: 1 Pages: 159-174

    • DOI

      10.1307/mmj/1516330972

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Ulrich ideals in numerical semigroup rings2021

    • Author(s)
      松岡直之
    • Organizer
      東京可換環論セミナー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Efficient generation of ideals in core subalgebras of the polynomial ring k[t] over a field k2019

    • Author(s)
      松岡直之
    • Organizer
      The Eighth China - Japan - Korea International Symposium on Ring Theory
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effricient generation of ideals in core subalgebras of the polynomial ring k[t]2019

    • Author(s)
      後藤四郎
    • Organizer
      第32回可換環論セミナー
    • Related Report
      2019 Research-status Report
  • [Presentation] The generalized Gorenstein property and numercal semigroup rings obtained by gluing2018

    • Author(s)
      Naoyuki Matsuoka
    • Organizer
      INdAM meeting : international meeting on numerical semigroups
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] The GGL property of numerical semigroup rings obtained by gluing2018

    • Author(s)
      Naoyuki Matsuoka
    • Organizer
      The 10th Japan-Vietnam Joint Seminar on Commutative Algebra
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2024-01-30  

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