3 citations · 3 across the 4 of their papers we have counts for
6 papers
Amenability, proximality and higher order syndeticity
Matthew Kennedy, Sven Raum, Guy Salomon
We show that the universal minimimal proximal flow and the universal minimal strongly proximal flow of a discrete group can be realized as the Stone spaces of translation invariant…
An algebraic characterization of ample type I groupoids
Gabriel Favre, Sven Raum
We give algebraic characterizations of the type I and CCR properties for locally compact second countable, ample Hausdorff groupoids in terms of subquotients of their Boolean inver…
Measure equivalence for non-unimodular groups
Juhani Koivisto, David Kyed, Sven Raum
We undertake a comprehensive study of measure equivalence between general locally compact, second countable groups, providing operator algebraic and ergodic theoretic reformulation…
Cartan subalgebras in dimension drop algebras
Selçuk Barlak, Sven Raum
We completely classify Cartan subalgebras of dimension drop algebras with coprime parameters. More generally, we classify Cartan subalgebras of arbitrary stabilised dimension drop…
Traces on reduced group C*-algebras
Matthew Kennedy, Sven Raum
In this short note we prove that the reduced group C*-algebra of a locally compact group admits a non-zero trace if and only if the amenable radical of the group is open. This comp…
On the classification of free Bogoljubov crossed product von Neumann algebras by the integers
Sven Raum
We consider crossed product von Neumann algebras arising from free Bogoljubov actions of the integers. We describe several presentations of them as amalgamated free products and co…