English

Supercongruences arising from Ramanujan-Sato Series

Number Theory 2025-03-14 v3

Abstract

Recently, the authors with Lea Beneish established a recipe for constructing Ramanujan-Sato series for 1/π1/\pi, and used this to construct 11 explicit examples of Ramanujan-Sato series arising from modular forms for arithmetic triangle groups of non-compact type. Here, we use work of Chisholm, Deines, Long, Nebe and the third author to prove a general pp-adic supercongruence theorem through an explicit connection to CM hypergeometric elliptic curves that provides pp-adic analogues of these Ramanujan-Sato series. We further use this theorem to construct explicit examples related to each of our explicit Ramanujan-Sato series examples.

Keywords

Cite

@article{arxiv.2408.08844,
  title  = {Supercongruences arising from Ramanujan-Sato Series},
  author = {Angelica Babei and Manami Roy and Holly Swisher and Bella Tobin and Fang-Ting Tu},
  journal= {arXiv preprint arXiv:2408.08844},
  year   = {2025}
}
R2 v1 2026-06-28T18:14:54.309Z