A combinatorial approach to the power of 2 in the number of involutions
نویسندگان
چکیده
We provide a combinatorial approach to the largest power of p in the number of permutations π with π = 1, for a fixed prime number p. With this approach, we find the largest power of 2 in the number of involutions, in the signed sum of involutions and in the numbers of even or odd involutions.
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ورودعنوان ژورنال:
- J. Comb. Theory, Ser. A
دوره 117 شماره
صفحات -
تاریخ انتشار 2010