Cusps of lattices in rank 1 lie groups over local fields

- Baumgartner, Udo

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

- Baumgartner, Udo, Willis, George A.

Hecke algebras of group extensions

- Baumgartner, Udo, Foster, James, Hicks, Jacqueline, Lindsay, Helen, Maloney, Ben, Raeburn, Iain, Ramagge, Jacqui, Richardson, Sarah

Hecke algebras of group extensions

- Baumgartner, Udo, Foster, James, Hicks, Jacqueline, Lindsay, Helen, Maloney, Ben, Raeburn, Iain, Ramagge, Jacqueline, Richardson, Sarah

A compactly generated group whose Hecke algebras admit no bounds on their representations

- Baumgartner, Udo, Ramagge, Jacqui, Willis, George A.

The direction of an automorphism of a totally disconnected locally compact group

- Baumgartner, Udo, Willis, George A.

Flat rank of automorphism groups of buildings

- Baumgartner, Udo, Remy, Bertrand, Willis, George A.

Scales for co-compact embeddings of virtually free groups

- Baumgartner, Udo

Contraction groups in complete Kac-Moody groups

- Baumgartner, Udo, Ramagge, Jacqui, Rémy, Bertrand

Hecke algebras from groups acting on trees and HNN extensions

- Baumgartner, Udo, Laca, Marcelo, Ramagge, Jacqui, Willis, George

Geometric characterization of flat groups of automorphisms

- Baumgartner, Udo, Schlichting, Günter, Willis, George

Hyperbolic groups have flat-rank at most 1

- Baumgartner, Udo, Möller, Rögnvaldur, Willis, George A.

Scale-multiplicative semigroups and geometry: Automorphism groups of trees

- Baumgartner, Udo, Ramagge, Jacqui, Willis, George A.