12 citations · 30 across the 16 of their papers we have counts for
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math.OA2020★ 5 cited
Almost elementary étale groupoids
Xin Ma, Jianchao Wu
Motivated by Matui and Kerr's work on almost finiteness, we introduce a new finite approximation property for (possibly non-ample) étale groupoids called {almost elementariness}, w…
math.OA2020★ 3 cited
Purely infinite locally compact Hausdorff étale groupoids and their -algebras
Xin Ma
In this paper, we introduce properties including groupoid comparison, pure infiniteness and paradoxical comparison as well as a new algebraic tool called groupoid semigroup for loc…