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math.OA2021
Fiberwise amenability of ample étale groupoids
Xin Ma
Let be a locally compact -compact Hausdorff ample groupoid on a compact space. In this paper, we further examine the (ubiquitous) fiberwise amenability introduced…
math.OA2021
A categorical study on the generalized type semigroup
Xin Ma
In this short note, we show that the generalized type semigroup $\CW(X, Γ)$ introduced by the author in \cite{M3} belongs to the category \textnormal{W}. In particular, we demonstr…