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math.OA2026
Nonnuclear Bunce-Deddens algebras
Jamie Bell
The paper defines and studies nonnuclear Bunce-Deddens C*-algebras built from free odometer actions of certain nonamenable groups, showing they have regularity properties and compu…
math.OA2026
Crossed product C*-algebras associated with non-minimal actions on the circle
Jamie Bell
We examine crossed product C*-algebras associated with free non-minimal actions of countably infinite discrete abelian groups on the circle, extending the work of Putnam, Schmidt,…
math.OA2025
Stable rank one in nonnuclear crossed products
Jamie Bell, Shirly Geffen, David Kerr
We initiate an investigation into the local structure of simple nonnuclear C-crossed products by showing that stable rank one is generic within two natural classes of minimal a…