English

Some restrictions on weight enumerators of singly even self-dual codes II

Combinatorics 2020-11-20 v2 Information Theory math.IT

Abstract

In this note, we give some restrictions on the number of vectors of weight d/2+1d/2+1 in the shadow of a singly even self-dual [n,n/2,d][n,n/2,d] code. This eliminates some of the possible weight enumerators of singly even self-dual [n,n/2,d][n,n/2,d] codes for (n,d)=(62,12)(n,d)=(62,12), (72,14)(72,14), (82,16)(82,16), (90,16)(90,16) and (100,18)(100,18).

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Cite

@article{arxiv.1706.03429,
  title  = {Some restrictions on weight enumerators of singly even self-dual codes II},
  author = {Masaaki Harada and Akihiro Munemasa},
  journal= {arXiv preprint arXiv:1706.03429},
  year   = {2020}
}

Comments

16 pages