Asymptotic independence for random permutations from surface groups
Abstract
Let be an orientable hyperbolic surface of genus with a marked point , and let be an orientable hyperbolic surface group isomorphic to . Consider the space which corresponds to -sheeted covers of with labeled fiber. Given and a uniformly random , what is the expected number of fixed points of ? Formally, let denote the number of fixed points of for a uniformly random . We think of as a random variable on the space . We show that an arbitrary fixed number of products of the variables are asymptotically independent as when there are no obvious obstructions. We also determine the limiting distribution of such products. Additionally, we examine short cycle statistics in random permutations of the form for a uniformly random . We show a similar asymptotic independence result and determine the limiting distribution.
Keywords
Cite
@article{arxiv.2310.18637,
title = {Asymptotic independence for random permutations from surface groups},
author = {Yotam Maoz},
journal= {arXiv preprint arXiv:2310.18637},
year = {2025}
}
Comments
38 pages, 2 figures, Accepted for publication in Geometriae Dedicata