4 papers
Crossed product functors associated to -pseudofunctions
Jacek Krajczok, Ebrahim Samei, Timo Siebenand +1
We show that the -pseudofunctions, which were recently shown to lead to exotic completions of group -algebras by Wiersma and the second named author, can be used to co…
RFD property for groupoid C*-algebras of amenable groupoids and for crossed products by amenable actions
Tatiana Shulman, Adam Skalski
By Bekka's theorem the group C*-algebra of an amenable group is residually finite dimensional (RFD) if and only if is maximally almost periodic (MAP). We generalize this re…
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…
Fourier--Stieltjes category for twisted groupoid actions
Alcides Buss, Bartosz KwaÅniewski, Andrew McKee +1
We extend the theory of Fourier--Stieltjes algebras to the category of twisted actions by étale groupoids on arbitrary C*-bundles, generalizing theories constructed previously by…