Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4655929 | Journal of Combinatorial Theory, Series A | 2010 | 4 Pages |
Abstract
Type II Z4-codes are a remarkable class of self-dual Z4-codes. A Type II Z4-code of length n exists if and only if n is divisible by eight. For lengths up to 48, extremal Type II Z4-codes are known. In this note, extremal Type II Z4-codes of lengths 56 and 64 are constructed for the first time.
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics