3 papers
math.FA2026
Embeddings of -operator algebras
Eusebio Gardella, Jan Gundelach
We study embeddings of -operator algebras arising from (twis\-ted) étale groupoids, with particular emphasis on rigidity phenomena for . Our methods rely on a detail…
math.OA2026
Duality of partial Rokhlin dimension
Jan Gundelach
We extend the notion of representability dimension to partial actions and introduce a notion of dual representability dimension for global actions by finite abelian groups. We show…
math.DS2026
An embedding version of Rubin's theorem
Jan Gundelach
Rubin's theorem asserts that if and are Rubin actions, then any group isomorphism induces an equivariant homeomorphism $Y…