R. Willett

activity

20062026

most citedExpanders, exact crossed products, and the Baum-Connes conjecture

63 citations · 280 across the 35 of their papers we have counts for

collaborators

Showing 2020Show all

3 papers · 1 filter

math.OA2020★ 5 cited

Controlled KK-theory, and a Milnor exact sequence

Rufus Willett, Guoliang Yu

We introduce controlled $K K$ -theory groups associated to a pair $(A, B)$ of separable $C^{*}$ -algebras. Roughly, these consist of elements of the usual $K$ -theory group $K_{0} (B)$ that…

math.OA2020★ 8 cited

Amenability and weak containment for actions of locally compact groups on $C^{*}$ -algebras

Alcides Buss, Siegfried Echterhoff, Rufus Willett

In this work we introduce and study a new notion of amenability for actions of locally compact groups on $C^{*}$ -algebras. Our definition extends the definition of amenability for ac…

math.OA2020

Bounded Derivations on Uniform Roe Algebras

Matthew Lorentz, Rufus Willett

We show that if $C_{u}^{*} (X)$ is a uniform Roe algebra associated to a bounded geometry metric space X, then all bounded derivations on $C_{u}^{*} (X)$ are inner.

Controlled KK-theory, and a Milnor exact sequence

Amenability and weak containment for actions of locally compact groups on C∗-algebras

Bounded Derivations on Uniform Roe Algebras

Amenability and weak containment for actions of locally compact groups on $C^{*}$ -algebras