Non-amenable principal groupoids with weak containment
classification
🧮 math.OA
math.GR
keywords
containmentgroupoidsprincipalweakamenableanantharaman-delarocheansweringclaire
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We construct examples of principal groupoids that have weak containment but are not amenable, thus answering questions by Claire Anantharaman-Delaroche and Rufus Willett.
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