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2010 Fiscal Year Final Research Report

Research on algebraic coding theory and its applications for vertex operator algebras

Research Project

  • PDF
Project/Area Number 19540048
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

BETSUMIYA Koichi  Jobu University, 大学院・理工学研究科, 准教授 (60364684)

Co-Investigator(Kenkyū-buntansha) MUNEMASA Akihiro  東北大学, 大学院・情報科学研究科, 教授 (50219862)
HARADA Masaaki  山形大学, 理学部, 准教授 (90292408)
YAMAUCHI Hiroshi  東京女子大学, 講師 (40452213)
Research Collaborator SHIMAKURA Hiroki  愛知教育大学, 教育学部, 講師 (90399791)
LAM Ching Hung  台湾中央研究所, 教授
Project Period (FY) 2007 – 2010
Keywords群論 / 符号理論
Research Abstract

We have presented an efficient algorithm for finding triply even codes by investigating the structure of triply even codes. This algorithm has produced a classification of maximal triply even codes of length up to 48. As a result, we have found a new maximal triply even code which is contrary to the expected behavior constructed by a triangular graph. Moreover, new framed vertex operator algebras have been constructed from the list of codes.

  • Research Products

    (12 results)

All 2011 2010 2009 2008 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (5 results) Remarks (2 results)

  • [Journal Article] Hadamard matrices of order 32 and extremal ternary self-dual codes2011

    • Author(s)
      別宮耕一・原田昌晃・木村浩
    • Journal Title

      Designs, Codes and Cryptography 58

      Pages: 203-214

    • Peer Reviewed
  • [Journal Article] The FLM conjecture and framed VOA、Vertex operator algebras and related areas2009

    • Author(s)
      Lam, Ching Hung・山内博
    • Journal Title

      Contemporary Mathematics 497

      Pages: 125-138

    • Peer Reviewed
  • [Journal Article] Mass formula for even codes over Z_8、Cryptography and Coding2009

    • Author(s)
      別宮耕一・Rowana Alma L.Betty・宗政昭弘
    • Journal Title

      Springer LNCS 5921

      Pages: 65-77

    • Peer Reviewed
  • [Journal Article] Minimum Lee weights of Type II code over F_2^r2008

    • Author(s)
      別宮耕一
    • Journal Title

      Discrete Mathematics 308

      Pages: 3018-3022

    • Peer Reviewed
  • [Journal Article] On the structure of framed vertex operator algebras and their pointwise frame stabilizers2008

    • Author(s)
      C.H.Lam・山内博
    • Journal Title

      Communications in Mathematical Physics 277

      Pages: 237-285

    • Peer Reviewed
  • [Presentation] 散在型有限単純群と頂点作用素代数2010

    • Author(s)
      山内博
    • Organizer
      日本数学会2010年度年会
    • Place of Presentation
      慶應義塾大学
    • Year and Date
      2010-03-27
  • [Presentation] Mass formula for even codes over Z_82010

    • Author(s)
      別宮耕一
    • Organizer
      The 8th Korea-Japan Workshop on Algebra and Combinatorics
    • Place of Presentation
      浦項工科大学校(大韓民国)
    • Year and Date
      2010-02-06
  • [Presentation] Mass formula for even codes over Z_82009

    • Author(s)
      別宮耕一
    • Organizer
      Twelfth IMA International Conference on Cryptography and Coding
    • Place of Presentation
      王立農業大学(英国)
    • Year and Date
      2009-12-15
  • [Presentation] リーチ格子のフレームとその応用2009

    • Author(s)
      宗政昭弘
    • Organizer
      第54回代数学シンポジウム
    • Place of Presentation
      明治大学
    • Year and Date
      2009-08-06
  • [Presentation] Codes over integer residue rings constructed by bases of Galois rings2008

    • Author(s)
      別宮耕一
    • Organizer
      The 6th Korea-Japan Workshop on Algebra and Combinatorics
    • Place of Presentation
      国立釜山大学校(大韓民国)
    • Year and Date
      2008-02-09
  • [Remarks] ホームページ等

    • URL

      http://www.st.hirosaki-u.ac.jp/~betsumi/

  • [Remarks]

    • URL

      http://www.math.is.tohoku.ac.jp/~munemasa/

URL: 

Published: 2012-01-26   Modified: 2016-04-21  

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