English

Transcendental nature of $p$-adic digamma values

Number Theory 2024-04-12 v1

Abstract

For a fixed prime pp, Murty and Saradha (2008) studied the transcendental nature of special values of the pp-adic digamma function, denoted as ψp(r/p)+γp\psi_p(r/p)+ \gamma_p. This research was later extended by Chatterjee and Gun in 2014, who investigated the case of ψp(r/pn)+γp\psi_p(r/p^n)+ \gamma_p, for any integer n>1n>1. In this article, we generalize their results for distinct prime powers and explore the transcendental nature of the pp-adic digamma values, with at most one exception. Further, we investigate the multiplicative independence of cyclotomic numbers satisfying certain conditions. Using this, we prove the transcendental nature of pp-adic digamma values corresponding to ψp(r/pq)+γp\psi_p(r/pq)+ \gamma_p, where p,qp, q are distinct primes.

Keywords

Cite

@article{arxiv.2404.07690,
  title  = {Transcendental nature of $p$-adic digamma values},
  author = {Tapas Chatterjee and Sonam Garg},
  journal= {arXiv preprint arXiv:2404.07690},
  year   = {2024}
}