Difference between revisions of "Hadamard difference set"
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Latest revision as of 23:42, 7 May 2008
Template:Difference set property
Definition
A difference set in a group is termed a Hadamard difference set or a Menon difference set if its order is 1/4 times the order of the group.
The significance is that the order of a difference set can be at most (roughly) 1/4 the order of the group.