Stirling Polynomials

Stirling Polynomials
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DOI:
10.1016/0097-3165(78)90042-0
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发表时间:
1978
期刊:
J. Comb. Theory A
影响因子:
--
通讯作者:
I. Gessel;R. Stanley
I. Gessel;R. Stanley
中科院分区:
其他
文献类型:
--
作者:
I. Gessel;R. Stanley

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研究了多项式sfk(n) =S(n+k,n)和gk(n) = (- 1)ks(n,n - k),其中,和分别表示第二类和第一类斯特林数。主要结果给出了多项式(1−x)2k+1Σn=0∞fk(n) x0系数的组合解释,类似于众所周知的欧拉数在排列下降方面的组合解释。
An investigation is made of the polynomialsfk(n) =S(n+k,n) andgk(n) = (−1)ks(n,n−k), whereSandsdenote the Stirling numbers of the second and first kind, respectively. The main result gives a combinatorial interpretation of the coefficients of the polynomial (1 −x)2k+1Σn=0∞fk(n)xnanalogous to the well-known combinatorial interpretation of the Eulerian numbers in terms of descents of permutations.