3 papers
math.OA2026
The ideal structure of Exel-Pardo algebras and their higher rank analogues
Johannes Christensen, Sergey Neshveyev
Given a pseudo-free self-similar action of a countable group on a countable directed graph with amenable stabilizers of the vertices, we identify the exact conditions under…
math.OA2025
The ideal structure of C*-algebras of etale groupoids with isotropy groups of local polynomial growth
Johannes Christensen, Sergey Neshveyev
Given an amenable second countable Hausdorff locally compact étale groupoid such that each isotropy group has local polynomial growth, we give a desc…
math.OA2025
The primitive spectrum of C*-algebras of etale groupoids with abelian isotropy
Johannes Christensen, Sergey Neshveyev
Given a Hausdorff locally compact étale groupoid , we describe as a topological space the part of the primitive spectrum of obtained by inducing one-…