English

Equidistribution of Gross points over rational function fields

Number Theory 2020-03-31 v2

Abstract

In this paper we prove a sparse equidistribution theorem for Gross points over the rational function field Fq(t)\mathbb{F}_q(t). We apply this result to study the reduction map from CM Drinfeld modules to supersingular Drinfeld modules. Our proofs rely crucially on a period formula due to M. Papikian and F.-T. Wei/J. Yu, and a Lindel\"of-type bound for central values of Rankin-Selberg LL-functions associated to twists of automorphic forms of Drinfeld-type by ideal class group characters.

Keywords

Cite

@article{arxiv.1905.07001,
  title  = {Equidistribution of Gross points over rational function fields},
  author = {Ahmad El-Guindy and Riad Masri and Matthew Papanikolas and Guchao Zeng},
  journal= {arXiv preprint arXiv:1905.07001},
  year   = {2020}
}

Comments

20 pages

R2 v1 2026-06-23T09:09:39.066Z