even permutation

even permutation

[¦ē·vən pər·myə′tā·shən]
(mathematics)
A permutation which may be represented as a result of an even number of transpositions.
References in periodicals archive ?
n](123, 231,312) if and only if [sigma] is an even permutation which is not isolated.
Conversely suppose that [sigma] is an even permutation which is not isolated.
Instead of enumerating this set we compute the complementary one among even permutations [S.
By the use of character table of S7 the following table of class coefficient reveals that only even permutations are involved in existence of D(2,3,5).