even code


A binary code is called even if the Hamming weight of all its codewords is even. Furthermore, a binary code is called doubly-even if the Hamming weight of all its codewords is divisible by 4. An even code which is not doubly-even is said to be strictly even.

Examples of doubly-even codes are the extended binary Hamming code of block length 8 and the extended binary Golay code of block length 24. These two codes are, in addition, self-dual.

Title even code
Canonical name EvenCode
Date of creation 2013-03-22 15:15:42
Last modified on 2013-03-22 15:15:42
Owner GrafZahl (9234)
Last modified by GrafZahl (9234)
Numerical id 4
Author GrafZahl (9234)
Entry type Definition
Classification msc 94B05
Related topic LinearCode
Defines doubly-even code
Defines strictly even code