Spectral gap with polynomial rate for random covering surfaces
Spectral Theory
2025-05-14 v1 Differential Geometry
Operator Algebras
Probability
Abstract
In this note we show that the recent work of Magee, Puder and van Handel [MPvH25] can be applied to obtain an optimal spectral gap result with polynomial error rate for uniformly random covers of closed hyperbolic surfaces. Let be a closed hyperbolic surface. We show there exists such that a uniformly random degree- cover of has no new Laplacian eigenvalues below with probability tending to as .
Keywords
Cite
@article{arxiv.2505.08479,
title = {Spectral gap with polynomial rate for random covering surfaces},
author = {Will Hide and Davide Macera and Joe Thomas},
journal= {arXiv preprint arXiv:2505.08479},
year = {2025}
}