2 papers
math.DS2026
Topologically free minimal actions without dynamical comparison
Paolo Boldrini, Akshara Prasad
We show the existence of a topologically free minimal action of on the Cantor space that does not have dynamical comparison. Moreover, we show that this phenomen…
math.OA2025
Type semigroups for twisted groupoids and a dichotomy for groupoid C*-algebras
Bartosz K. KwaÅniewski, Ralf Meyer, Akshara Prasad
We develop a theory of type semigroups for arbitrary twisted, not necessarily Hausdorff étale groupoids. The type semigroup is a dynamical version of the Cuntz semigroup. We relat…