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Well-poised generation of Apéry-like recursions

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posted on 2025-05-10, 23:51 authored by W. Zudilin
The idea to use classical hypergeometric series and, in particular, well-poised hypergeometric series in diophantine problems of the values of the polylogarithms has led to several novelties in number theory and neighbouring areas of mathematics. Here, we present a systematic approach to derive second-order polynomial recursions for approximations to some values of the Lerch zeta function, depending on the fixed (but not necessarily real) parameter α satisfying the condition Re(α)<1. Substituting α=0 into the resulting recurrence equations produces the famous recursions for rational approximations to ζ(2), ζ(3) due to Apéry, as well as the known recursion for rational approximations to ζ(4). Multiple integral representations for solutions of the constructed recurrences are also given.

History

Journal title

Journal of Computational and Applied Mathematics

Volume

178

Issue

1-2

Pagination

513-521

Publisher

Elsevier

Place published

Amsterdam, Netherlands

Language

  • en, English

College/Research Centre

Faculty of Science

School

School of Mathematical and Physical Sciences

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