De Sam Shepherd
Given compact length spaces $X_1$ and $X_2$ with a common universal cover, it is natural to ask whether $X_1$ and $X_2$ have a common finite cover. In particular, are there properties of $X_1$ and $X_2$, or of their fundamental groups, that guarantee the existence of a common finite cover? We will discuss several examples, as well as my new result which concerns the case where the common universal cover is a right-angled building. Examples of right-angled buildings include products of trees and Davis complexes of right-angled Coxeter groups. My new result will be stated in terms of weak commensurability of lattices in the automorphism group of the building.
De Koji Fujiwara
De Emily Stark
De Kathryn Mann
De Pallavi Dani
De Carolyn Abbott
De Alice Kerr
De Jean Lecureux
De Nir Lazarovich
De Sam Shepherd
De Alessandro Sisto
De Stephen Coombes , Peter Liddle
De Ariane Trescases
De Albert Schwarz
De Victor Kleptsyn
De François-Xavier Vialard
De Thibaut Le Gouic
De Elsa Cazelles
