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math.OA2025
Generic classification of the quasi-free flows on the Cuntz algebra
Robert Neagu
In this article we show that the quasi-free flows on the Cuntz algebra are generically classifiable by the inverse temperature of their unique KMS state. Along the…
math.OA2025
Brown-Voiculescu entropy revisited
Bhishan Jacelon, Robert Neagu
Aided by the tools and outlook provided by modern classification theory, we take a new look at the Brown-Voiculescu entropy of endomorphisms of nuclear C*-algebras. In particular,…
math.OA2025
On a Rokhlin property for abelian group actions on C-algebras
Johannes Christensen, Robert Neagu, Gábor Szabó
In this article, we study the so-called abelian Rokhlin property for actions of locally compact, abelian groups on C-algebras. We propose a unifying framework for obtaining var…