Even code: Difference between revisions

Revision as of 03:47, 14 April 2012

Revision as of 23:39, 24 February 2013

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A [[linear code|binary code]] is called an '''even code''' if the [[Hamming weight]] of alleach of its codewords is even. An even code should have a generator polynomial that include (1+''x'') minimal polynomial as a product. 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 code|self-dual]].

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[[Category:Coding theory]]

[[Category:Parity]]

[[Special:Contributions/68.82.98.206|68.82.98.206]] ([[User talk:68.82.98.206|talk]]) 23:39, 24 February 2013 (UTC)