most citedCusps of lattices in rank 1 Lie groups over local fields

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math.GR2008

Geometric characterization of flat groups of automorphisms

Udo Baumgartner, Günter Schlichting, George A. Willis

If H is a flat group of automorphisms of finite rank n of a totally disconnected, locally compact group G, then each orbit of H in the metric space B(G) of compact, open subgroups…

math.GR2003★ 1 cited

Cusps of lattices in rank 1 Lie groups over local fields

Udo Baumgartner

Let G be the group of rational points of a semisimple algebraic group of rank 1 over a nonarchimedean local field. We improve upon Lubotzky's analysis of graphs of groups describin…

math.GR2003

Contraction groups and scales of automorphisms of totally disconnected locally compact groups

Udo Baumgartner, George A. Willis

We study contraction groups for automorphisms of totally disconnected locally compcat groups using the scale of the automorphism as a tool. The contraction group is shown to be unb…