On the linear independence of $p$-adic polygamma values

Fuente: arXiv
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Autori principali: Kawashima, Makoto, Poëls, Anthony
Natura: Preprint
Pubblicazione: 2024
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author Kawashima, Makoto
Poëls, Anthony
author_facet Kawashima, Makoto
Poëls, Anthony
contents In this article, we present a new linear independence criterion for values of the $p$-adic polygamma functions defined by J.~Diamond. As an application, we obtain the linear independence of some families of values of the $p$-adic Hurwitz zeta function $ζ_p(s,x)$ at distinct shifts $x$. This improves and extends a previous result due to P.~Bel [5], as well as irrationality results established by F.~Beukers [7]. Our proof is based on a novel and explicit construction of Padé-type approximants of the second kind of Diamond's $p$-adic polygamma functions. This construction is established by using a difference analogue of the Rodrigues formula for orthogonal polynomials.
format Preprint
id arxiv_https___arxiv_org_abs_2410_06789
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On the linear independence of $p$-adic polygamma values
Kawashima, Makoto
Poëls, Anthony
Number Theory
In this article, we present a new linear independence criterion for values of the $p$-adic polygamma functions defined by J.~Diamond. As an application, we obtain the linear independence of some families of values of the $p$-adic Hurwitz zeta function $ζ_p(s,x)$ at distinct shifts $x$. This improves and extends a previous result due to P.~Bel [5], as well as irrationality results established by F.~Beukers [7]. Our proof is based on a novel and explicit construction of Padé-type approximants of the second kind of Diamond's $p$-adic polygamma functions. This construction is established by using a difference analogue of the Rodrigues formula for orthogonal polynomials.
title On the linear independence of $p$-adic polygamma values
topic Number Theory
url https://arxiv.org/abs/2410.06789