Classification of extremal formally self-dual even codes of length 22

Masaaki Harada, Patric R.J. Östergård

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Lengths 22 and 30 are so far the only open cases in the classification of extremal formally self-dual even codes. In this paper, a classification of the extremal formally self-dual even codes of length 22 is given. There are 41520 such codes.A variety of properties of these codes are investigated. In particular, new 2-(22, 6, 5) designs are constructed from the codes.

Original languageEnglish
Pages (from-to)507-516
Number of pages10
JournalGraphs and Combinatorics
Volume18
Issue number3
DOIs
Publication statusPublished - 2002 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Discrete Mathematics and Combinatorics

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