Title :
The mass of extremal doubly-even self-dual codes of length 40
Author_Institution :
Dept. of Math., California Univ., Berkeley, CA, USA
fDate :
9/1/2001 12:00:00 AM
Abstract :
We determine the mass of extremal doubly-even self-dual binary codes of length 40. It follows that there are at least 12579 such codes
Keywords :
binary codes; dual codes; Type II codes; binary codes; code length; extremal doubly-even self-dual codes; mass determination; unimodular lattices; Binary codes; Hamming weight; Lattices; Mathematics; Rain;
Journal_Title :
Information Theory, IEEE Transactions on
