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math.OA2024
K-theory invariance of -operator algebras associated with étale groupoids of strong subexponential growth
Are Austad, Eduard Ortega, Mathias Palmstrøm
We introduce the notion of (strong) subexponential growth for étale groupoids and study its basic properties. In particular, we show that the K-groups of the associated groupoid $L…
math.OA2024
Exotic groupoid -algebras associated to double groupoids
Mathias Palmstrøm
We consider a class of partial action groupoids called double groupoids which are constructed from pairs of subgroups satisfying similar conditions to those of a matched pair of gr…