New extremal formally self-dual even codes of length 30

Masaaki Harada, Katsushi Waki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

There are extremal formally self-dual even codes which are not selfdual only for lengths 6, 10, 12, 14, 18, 20, 22, 28 and 30. The only length for which the classification has not been done yet is 30. In this note, new extremal formally self-dual even codes of length 30 are constructed using symmetric matrices.

Original languageEnglish
Pages (from-to)311-316
Number of pages6
JournalAdvances in Mathematics of Communications
Volume3
Issue number4
DOIs
Publication statusPublished - 2009 Nov

Keywords

  • Double circulant code
  • Extremal code
  • Formally self-dual even code

ASJC Scopus subject areas

  • Algebra and Number Theory
  • Computer Networks and Communications
  • Discrete Mathematics and Combinatorics
  • Applied Mathematics

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