Non-existence of boundary maps for some hierarchically hyperbolic spaces
arXiv:1610.07691 · doi:10.2140/agt.2018.18.409
Abstract
We provide negative answers to questions posed by Durham, Hagen, and Sisto on the existence of boundary maps for some hierarchically hyperbolic spaces, namely maps from right-angled Artin groups to mapping class groups. We also prove results on existence of boundary maps for free subgroups of mapping class groups.
20 pages, 2 figures