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Fell bundles and Haagerup properties
Erik Bédos, Roberto Conti, Lyudmila Turowska
We introduce new properties of Haagerup-type for Fell bundles over discrete groups and discuss their relationship with Haagerup properties for the associated -algebras. In par…
Actions of Fell bundles
Erik Bédos, Roberto Conti
We introduce and study actions of Fell bundles over discrete groups on Hilbert bundles. Many examples of such actions are presented. We discuss the connection with positive definit…
Positive definiteness and Fell bundles over discrete groups
Erik Bédos, Roberto Conti
We introduce a natural concept of positive definiteness for bundle maps between Fell bundles over (possibly different) discrete groups and describe several examples. Such maps indu…
The Fourier-Stieltjes algebra of a C*-dynamical system II
Erik Bédos, Roberto Conti
We continue our study of the Fourier-Stieltjes algebra associated to a twisted (unital, discrete) C*-dynamical system and discuss how the various notions of equivalence of such sys…