Non-simple systoles on random hyperbolic surfaces for large genus

Abstract

In this paper, we investigate the asymptotic behavior of the non-simple systole, which is the length of a shortest non-simple closed geodesic, on a random closed hyperbolic surface on the moduli space ${\mathcal{M}}_g$ of Riemann surfaces of genus $g$ endowed with the Weil-Petersson measure. We show that as the genus $g$ goes to infinity, the non-simple systole of a generic hyperbolic surface in ${\mathcal{M}}_g$ behaves exactly like $\log g$.

47 pages, 11 figures. Comments welcome