On the Zeta functions of supersingular isogeny graphs and modular curves
Number Theory
2023-10-24 v2 Combinatorics
Abstract
Let and be distinct prime numbers, with . Let be a positive integer that is coprime to . We prove a formula relating the Hasse--Weil zeta function of the modular curve to the Ihara zeta function of the -isogeny graphs of supersingular elliptic curves defined over equipped with a -level structure. When , this recovers a result of Sugiyama.
Keywords
Cite
@article{arxiv.2307.01001,
title = {On the Zeta functions of supersingular isogeny graphs and modular curves},
author = {Antonio Lei and Katharina Müller},
journal= {arXiv preprint arXiv:2307.01001},
year = {2023}
}
Comments
minor changes, accepted for publication in Archiv der Mathematik