Quantitative Equidistribution on Hyperbolic Surfaces and Arithmetic Applications

Fuente: arXiv
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Main Author: Humphries, Peter
Format: Preprint
Published: 2025
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author Humphries, Peter
author_facet Humphries, Peter
contents The Wasserstein distance quantifies the distance between two probability measures on a metric space. We prove an analogue of the Berry-Esseen inequality for the Wasserstein distance on a finite area hyperbolic surface. This inequality controls the Wasserstein distance via an average of Weyl sums, which are integrals of Maass cusp forms and Eisenstein series with respect to these probability measures. As applications, we prove upper bounds for the Wasserstein distance for some equidistribution problems on the modular surface $\mathrm{SL}_2(\mathbb{Z}) \backslash \mathbb{H}$, namely Duke's theorems on the equidistribution of Heegner points and of closed geodesics and Watson's theorem on the mass equidistribution of Hecke-Maass cusp forms conditionally under the assumption of the generalised Lindelof hypothesis.
format Preprint
id arxiv_https___arxiv_org_abs_2512_15664
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quantitative Equidistribution on Hyperbolic Surfaces and Arithmetic Applications
Humphries, Peter
Number Theory
The Wasserstein distance quantifies the distance between two probability measures on a metric space. We prove an analogue of the Berry-Esseen inequality for the Wasserstein distance on a finite area hyperbolic surface. This inequality controls the Wasserstein distance via an average of Weyl sums, which are integrals of Maass cusp forms and Eisenstein series with respect to these probability measures. As applications, we prove upper bounds for the Wasserstein distance for some equidistribution problems on the modular surface $\mathrm{SL}_2(\mathbb{Z}) \backslash \mathbb{H}$, namely Duke's theorems on the equidistribution of Heegner points and of closed geodesics and Watson's theorem on the mass equidistribution of Hecke-Maass cusp forms conditionally under the assumption of the generalised Lindelof hypothesis.
title Quantitative Equidistribution on Hyperbolic Surfaces and Arithmetic Applications
topic Number Theory
url https://arxiv.org/abs/2512.15664