Problems on automorphism groups of nonpositively curved polyhedral complexes and their lattices
arXiv:0803.2484
Abstract
The goal of this paper is to present a number of problems about automorphism groups of nonpositively curved polyhedral complexes and their lattices, meant to highlight possible directions for future research.
39 pages, 2 figures. To appear in Festschrift in honor of Robert Zimmer's 60th Birthday. Version 2: incorporates many useful comments and some new problems suggested by Frederic Haglund