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math.GR2021
Most rigid representation and Cayley index of finitely generated groups
Paul-Henry Leemann, Mikael de la Salle
If is a group and a generating set, canonically embeds into the automorphism group of its Cayley graph and it is natural to try to minimize, over all generating sets, t…
math.GR2021
Wreath products of groups acting with bounded orbits
Paul-Henry Leemann, Grégoire Schneeberger
If is a subcategory of metric spaces, we say that a group G has property if any isometric action on an -space has bounded orbits. Examples of…
math.GR2021★ 3 cited
Property FW and wreath products of groups: a simple approach using Schreier graphs
Paul-Henry Leemann, Grégoire Schneeberger
The group property FW stands in-between the celebrated Kazdhan's property (T) and Serre's property FA. Among many characterizations, it might be defined, for finitely generated gro…