CAT(0) groups with specified boundary
arXiv:0903.1779 · doi:10.2140/agt.2006.6.633
Abstract
We specify exactly which groups can act geometrically on CAT(0) spaces whose visual boundary is homeomorphic to either a circle or a suspension of a Cantor set.
This is the version published by Algebraic & Geometric Topology on 4 May 2006