activity
20122025
most citedTraces on reduced group C*-algebras

3 citations · 3 across the 7 of their papers we have counts for

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8 papers · 1 filter

math.OA2025

Delocalised traces on Hecke algebras of right-angled, hyperbolic type

Piotr Nowak, Sanaz Pooya, Sven Raum +1

For every Hecke C*-algebra of right-angled, hyperbolic type, we construct a smooth subalgebra to which traces associated with arbitrary conjugacy classes in the associated Coxeter…

math.OA2025

Strict comparison for twisted group C*-algebras

Sven Raum, Hannes Thiel, Eduard Vilalta

We prove that any reduced twisted group C*-algebra of a selfless group with the rapid decay property is selfless. As an application, we show that twisted group C*-algebras of acyli…

math.OA2024

Twisted group C*-algebras of acylindrically hyperbolic groups have stable rank one

Sven Raum

We prove that the twisted group C*-algebra of an acylindrically hyperbolic group -- not necessarily having trivial finite radical -- has stable rank one.

math.OA2023

Free actions of polynomial growth Lie groups and classifiable C*-algebras

Ulrik Enstad, Gabriel Favre, Sven Raum

We show that any free action of a connected Lie group of polynomial growth on a finite dimensional locally compact space has finite tube dimension. This is shown to imply that the…

math.OA2020

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…

math.OA2018

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…