Compressible Spaces and $\mathcal{E}\mathcal{Z}$-Structures

Craig Guilbault, Molly Moran, Kevin Schreve

Bestvina introduced a $\mathcal{Z}$-structure for a group $G$ to generalize the boundary of a CAT(0) or hyperbolic group. A refinement of this notion, introduced by Farrell and Laf…