3 papers
math.OA2026
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…
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.OA2024
Fourier--Stieltjes category for twisted groupoid actions
Alcides Buss, Bartosz Kwaśniewski, 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 B…