English

A $q$-supercongruence modulo the fourth power of a cyclotomic polynomial

Number Theory 2022-06-28 v2

Abstract

In this paper, a new qq-supercongruence with two free parameters modulo the fourth power of a cyclotomic polynomial is obtained. Our main auxiliary tools are Watson's 8ϕ7_8\phi_7 transformation formula for basic hypergeometric series, the `creative microscoping' method recently introduced by Guo and Zudilin and the Chinese remainder theorem for coprime polynomials. By taking suitable parameter substitutions in the established qq-supercongruence, some nice congruences involving the Bernoulli numbers are derived.

Keywords

Cite

@article{arxiv.2201.05785,
  title  = {A $q$-supercongruence modulo the fourth power of a cyclotomic polynomial},
  author = {Xiaoxia Wang and Chang Xu},
  journal= {arXiv preprint arXiv:2201.05785},
  year   = {2022}
}