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Hypergeometric Cauchy numbers and polynomials

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Abstract

For positive integers N and M, the general hypergeometric Cauchy polynomials c M,N,n (z) (M, N ≥ 1; n ≥ 0) are defined by

$$\frac{1}{(1+t)^z} \frac{1}{{}_2F_1(M,N;N+1;-t)}=\sum_{n=0}^\infty c_{M,N,n}(z)\, \frac{t^n}{n!}\,, $$

where \({{}_2 F_1(a,b;c;z)}\) is the Gauss hypergeometric function. When M = N = 1, c n  = c 1,1,n are the classical Cauchy numbers. In 1875, Glaisher gave several interesting determinant expressions of numbers, including Bernoulli, Cauchy and Euler numbers. In the aspect of determinant expressions, hypergeometric Cauchy numbers are the natural extension of the classical Cauchy numbers, though many kinds of generalizations of the Cauchy numbers have been considered by many authors. In this paper, we show some interesting expressions of generalized hypergeometric Cauchy numbers. We also give a convolution identity for generalized hypergeometric Cauchy polynomials.

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Authors and Affiliations

  1. School of Mathematics and Statistics, Wuhan University, Wuhan, 430072, China

    T. Komatsu

  2. School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China

    P. Yuan

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  1. T. Komatsu
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  2. P. Yuan
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Correspondence to T. Komatsu.

Additional information

The second named author is supported by NSF of China (Grant No. 11671153).

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Komatsu, T., Yuan, P. Hypergeometric Cauchy numbers and polynomials. Acta Math. Hungar. 153, 382–400 (2017). https://doi.org/10.1007/s10474-017-0744-0

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  • DOI: https://doi.org/10.1007/s10474-017-0744-0

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