Jason A. Behrstock

collaborators

3 papers

math.GR2025

A threshold for relative hyperbolicity in random right-angled Coxeter groups

Jason Behrstock, Recep Altar Ciceksiz, Victor Falgas-Ravry

We consider the random right-angled Coxeter group $W_{I^} $ whose presentation graph $I^ \sim G_{n, p}$ is an Erd{\H o}s--RÃ©nyi random graph on $n$ vertices with edge probabi…

math.PR2025

Connectivity for square percolation and coarse cubical rigidity in random right-angled Coxeter groups

Jason Behrstock, R. Altar Ciceksiz, Victor Falgas-Ravry

We consider random right-angled Coxeter groups, $W_{I^} $ , whose presentation graph $I^$ is taken to be an ErdÅs--RÃ©nyi random graph, i.e., $I^ \sim G_{n, p}$ . We use techni…

math.GR2024

A combinatorial take on hierarchical hyperbolicity and applications to quotients of mapping class groups

Jason Behrstock, Mark Hagen, Alexandre Martin +1

We give a simple combinatorial criterion, in terms of an action on a hyperbolic simplicial complex, for a group to be hierarchically hyperbolic. We apply this to show that quotient…