Abstract
We describe a bordered construction for self-dual codes coming from group rings. We apply the constructions coming from the cyclic and dihedral groups over several alphabets to obtain extremal binary self-dual codes of various lengths. In particular we find a new extremal binary self-dual code of length 78.
Original language | English (US) |
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Pages (from-to) | 103-119 |
Number of pages | 17 |
Journal | Journal of Algebra Combinatorics Discrete Structures and Applications |
Volume | 7 |
Issue number | 2 |
DOIs | |
State | Published - May 7 2020 |
Keywords
- Bordered constructions
- Codes over rings
- Group rings
- Self-dual codes
ASJC Scopus subject areas
- Algebra and Number Theory
- Discrete Mathematics and Combinatorics