• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2012 Fiscal Year Final Research Report

Commutative algebra - towards a better understanding of non-Cohen-Macaulay rings

Research Project

  • PDF
Project/Area Number 22540054
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Algebra
Research InstitutionMeiji University

Principal Investigator

GOTO Shiro  明治大学, 理工学部, 教授 (50060091)

Co-Investigator(Kenkyū-buntansha) OZEKI Kazuho  山口大学, 大学院・理学研究科, 専任講師 (70445849)
IAI Shinichiro  北海道教育大学, 教育学部, 准教授 (50333125)
Project Period (FY) 2010 – 2012
Keywords環論(含リー環)
Research Abstract

The final goal of this research is to answer the naive but important question of what non-Cohen-Macaulay rings are. The present targets are the following. (1) The study of quasi-socle ideals Q : mq, where m is the maximal ideal in a given Noetherian local ring and Q a parameter ideal in it. (2) The analysis of the graded rings associated to I = Q : mq. (3) The study of Gorenstein property in the Rees algebras of powers of parameter ideals. The achievements are summarized into 15 papers.

  • Research Products

    (27 results)

All 2013 2012 2011 2010 2009

All Journal Article (15 results) Presentation (11 results) Book (1 results)

  • [Journal Article] Hilbert coefficients and sequentiallyCohen-Macaulay modules2013

    • Author(s)
      N. Cuong, S. Goto, and H. L. Truong
    • Journal Title

      Journal of Pure and Applied Algebra

      Volume: 217 Pages: 470-480

  • [Journal Article] The equality $I^2 = ¥q I$ in sequentially Cohen-Macaulay rings2013

    • Author(s)
      N. Cuong, S. Goto, and H. L. Truong
    • Journal Title

      J. Algebra

      Volume: 379 Pages: 50-79

  • [Journal Article] Almost Gorenstein rings2013

    • Author(s)
      S. Goto, N. Matsuoka, and T. T. Phuong
    • Journal Title

      Journal of Algebra

      Volume: 379 Pages: 355-381

  • [Journal Article] The homology of parameter ideals2012

    • Author(s)
      S. Goto, J. Hong, and W. V. Vasconcelos
    • Journal Title

      Journal of Algebra

      Volume: 368 Pages: 271-299

  • [Journal Article] Negativity of the Chern Number of Parameter Ideals, Algebra and its applications, Recent developments2012

    • Author(s)
      S. Goto, M. Mandal, and J. Verma
    • Journal Title

      Narosa (A. Beg and M. Ashraf (Editors))

      Volume: 53-68 Pages: 53-68

  • [Journal Article] Variation of the first Hilbert coefficients of parameters with a common integral closure2012

    • Author(s)
      L. Ghezzi, S. Goto, K. Ozeki, J. Hong, T.T. Phuong, and W. V. Vasconcelos
    • Journal Title

      Journal of Pure and Applied Algebra

      Volume: 216 Pages: 216-232

  • [Journal Article] The leading ideal of a complete intersectionof height two, Part I I I2012

    • Author(s)
      S. Goto, W. Heinzer, and M.-K. Kim
    • Journal Title

      Comm. Algebra

      Volume: 40 Pages: 2523-2539

  • [Journal Article] The positivity of the first normalized Hilbert coefficients2011

    • Author(s)
      S. Goto, J. Hong, and M. Mandal
    • Journal Title

      The Proceedings of the American Mathematical Society

      Volume: 139 Pages: 2399-2406

  • [Journal Article] Quasi-socle ideals in Buchsbaum rings2010

    • Author(s)
      S. Goto, J. Horiuchi, and H. Sakurai
    • Journal Title

      Nagoya Math. J

      Volume: 200 Pages: 93-106

  • [Journal Article] Buchsbaumnessin local rings possessing constant first Hilbert coefficients of parameters2010

    • Author(s)
      S. Goto and K. Ozeki
    • Journal Title

      Nagoya Math. J

      Volume: 199 Pages: 95-105

  • [Journal Article] Cohen-Macaulayness versus the vanishing of the first Hilbert coefficient of parameter ideals2010

    • Author(s)
      L. Ghezzi, S. Goto, K. Ozeki, J. Hong, T.T. Phuong, and W. V. Vasconcelos
    • Journal Title

      J. London Math. Soc.

      Volume: 81(2) Pages: 679-695

  • [Journal Article] The structure of Sally modules - towards a theory of non-Cohen-Macaulay cases -2010

    • Author(s)
      S. Goto and K. Ozeki
    • Journal Title

      J. Algebra

      Volume: 324 Pages: 2129-2165

  • [Journal Article] Quasi-socle ideals and Goto numbers of parameters2010

    • Author(s)
      S. Goto, S. Kimura, T. T. Phuong, andH. L. Truong
    • Journal Title

      Journal of Pure andApplied Algebra

      Volume: 214 Pages: 501-511

  • [Journal Article] Sequentially Cohen-Macaulayness versus parametric decomposition of powers of parameter ideals2010

    • Author(s)
      S. Goto, Y. Horiuchi, and H. Sakurai
    • Journal Title

      Journal of Commutative Algebra

      Volume: 2 Pages: 37-54

  • [Journal Article] Uniform bounds for Hilbert coefficients of parameters, "Commutative Algebra and its Connections to Geometry (PASI 2009)2009

    • Author(s)
      S. Goto and K. Ozeki
    • Journal Title

      Contemp. Math

      Volume: 555 Pages: 97-118

  • [Presentation] Ulrich ideals and modules, I2012

    • Author(s)
      後藤四郎
    • Organizer
      The 12-th ALGA Meeting dedicated to Steven Kleiman and Aron Simis on the occasion of their 70-th birthdays
    • Place of Presentation
      IMPA, Rio de Janeiro, Brazil
    • Year and Date
      20120813-17
  • [Presentation] Almost Gorenstein rings of higher dimension2012

    • Organizer
      The 3rd Bluegrass Algebra Conference
    • Place of Presentation
      University of Kentucky, USA
    • Year and Date
      20120613-15
  • [Presentation] Ulrich ideals and modules2012

    • Author(s)
      後藤四郎
    • Organizer
      Commutative Algebra Program of MSRI, Fall 2012 ~ March 2013, the Seminar organized by C. Huneke, C. Polini, and B. Ulrich
    • Place of Presentation
      MSRI, Berkeley, USA.
    • Year and Date
      2012-09-17
  • [Presentation] 巴系のホモロジー2012

    • Author(s)
      後藤四郎
    • Organizer
      日本数学会年会・代数学分科会特別講演
    • Year and Date
      2012-03-28
  • [Presentation] Almost Gorenstein rings -- an attempt towards higher dimensional cases --2011

    • Author(s)
      後藤四郎
    • Organizer
      The 7-th Japan-Vietnam Joint Seminar on Commutative Algebra
    • Place of Presentation
      Quy Nhon (Vietnam)
    • Year and Date
      20111212-16
  • [Presentation] Ulrich加群の一般化2011

    • Author(s)
      後藤四郎,高橋亮,大関一秀
    • Organizer
      第33回可換環論シンポジウム
    • Place of Presentation
      浜名湖カリアック
    • Year and Date
      20111107-1110
  • [Presentation] TranThiPhuong,AlmostGorensteinrings2011

    • Author(s)
      後藤四郎,松岡直之
    • Organizer
      第33回可換環論シンポジウム
    • Place of Presentation
      浜名湖カリアック
    • Year and Date
      20111107-10
  • [Presentation] Almost Gorenstein rings2011

    • Author(s)
      後藤四郎
    • Organizer
      Juergen Herzog を囲む可換代数の集い
    • Place of Presentation
      大阪大学
    • Year and Date
      20110614-15
  • [Presentation] Almost Gorenstein rings2011

    • Author(s)
      後藤四郎
    • Organizer
      Midwest Commutative Algebra and Geometry Conference at PURDUE
    • Place of Presentation
      Purdue University (West Lafayette, USA)
    • Year and Date
      20110522-26
  • [Presentation] Hilbert coefficients of parameters, 5 lectures, ICTP School and Workshop on Local Rings and Local Study of Algebraic Varieties2010

    • Author(s)
      後藤四郎
    • Organizer
      ICTP (The Abdus Salam International Center for Theoretical Physics)
    • Place of Presentation
      Trieste, Italy
    • Year and Date
      20100531-0611
  • [Presentation] Study of Hilbert functions and coefficients of parameters I, I I, I I I, IV2010

    • Author(s)
      後藤四郎
    • Organizer
      The 5-th Japan-Vietnam Joint Seminar on Commutative Algebra, Institute ofMathematics Hanoi
    • Place of Presentation
      Hanoi (Vietnam)
    • Year and Date
      20100105-09
  • [Book] 日本評論社2011

    • Author(s)
      後藤四郎,渡辺敬一
    • Publisher
      可換環論

URL: 

Published: 2014-08-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi