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Cubulations of closed hyperbolic manifolds
This thesis contributes to the study of geometric actions of word-hyperbolic groups on finite dimensional CAT(0) cube complexes. We are mainly interested in the case... -
Topology and geometry of non-positively curved complexes of groups
Given a complex of groups, when is it possible to deduce a property for its fundamental group out of the analogous properties of its local groups? This natural problem... -
Graphs of groups and co-hopfian groups
A group G is said to be co-hopfian if every injection from G to G is an automorphism. With the Bass-Serre theory, we give conditions for the fundamental group of a...
