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math.OA2023
Exotic -completions of étale groupoids
Mathias Palmstrøm
We generalize the ideal completions of countable discrete groups, as introduced by Brown and Guentner, to second countable Hausdorff étale groupoids. Specifically, to every pair co…
math.OA2023
Polynomial growth and property for étale groupoids with applications to -theory
Are Austad, Eduard Ortega, Mathias Palmstrøm
We investigate property for étale groupoids and apply it to -theory of reduced groupoid -operator algebras. In particular, under the assumption of polynomial growth,…