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Let W be a Coxeter group acting properly discontinuously and cocompactly on manifolds N and M (∂M = ∅) such that the fixed point sets of finite subgroups are contractible. Let f : (N, ∂N) →(More)
Let Γ be a discrete group which is a split extension of a group ∆ by a Coxeter group W , with ∆ acting on W by Coxeter graph automorphisms with kernel ∆0. Let Mi, i = 1, 2, be two Γ-manifolds(More)