Some results on derangement polynomials

被引：0
|
作者：
Hassani, Mehdi
Moshtagh, Hossein
Ghorbani, Mohammad
机构：
来源：
COMMENTATIONES MATHEMATICAE UNIVERSITATIS CAROLINAE | 2022年 / 63卷 / 03期
关键词：
derangement; permutation; integration;
D O I：
暂无
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
We study moments of the difference D-n(x) - x(n)n! e(-1/x) concerning derange-ment polynomials D-n(x). For the first moment, we obtain an explicit formula in terms of the exponential integral function and we show that it is always negative for x > 0. For the higher moments, we obtain a multiple integral representation of the order of the moment under computation.
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页码：2 / 2
页数：1
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