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math.OA2023
A new approach to deformation of C*-algebras via coactions
Alcides Buss, Siegfried Echterhoff
We revisit the procedure of deformation of -algebras via coactions of locally compact groups and extend the methods to cover deformations for maximal, reduced, and exotic coac…
math.OA2023★ 1 cited
Approximation properties of Fell bundles over inverse semigroups and non-Hausdorff groupoids
Alcides Buss, Diego Martínez
In this paper we study the nuclearity and weak containment property of reduced cross-sectional C*-algebras of Fell bundles over inverse semigroups. In order to develop the theory,…
math.KT2023
KK-duality for self-similar groupoid actions on graphs
Nathan Brownlowe, Alcides Buss, Daniel Gonçalves +3
We extend Nekrashevych's -duality for -algebras of regular, recurrent, contracting self-similar group actions to regular, contracting self-similar groupoid actions on a gr…