“School of Mathematics”
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Paper IPM / M / 8939 |
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Abstract: | |
Let π be an even permutation on n letters which has
a root, that is, there exists an even permutation ξ such that
π = ξ2. In this article the number of this kind of π is
found by using generating function techniques. This is the analogue
of a result for the number of all permutations with roots.
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