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I like Serena
#5
Mar14-12, 06:10 PM
HW Helper
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P: 6,188
We simply say "odd permutation" when we mean a permutation that can be written as an odd number of transpositions.
See for instance wiki: http://en.wikipedia.org/wiki/Parity_of_a_permutation

I guess the term "even cycle" is a bit ambiguous though.