When are crossed products by minimal diffeomorphisms isomorphic?
classification
🧮 math.OA
keywords
crossedproductsminimaldiffeomorphismssmoothanalogcantordemonstrate
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This is a survey which discusses the isomorphism problem for both C* and smooth crossed products by minimal diffeomorphisms. For C* crossed products, examples demonstrate the failure of the obvious analog of the Giordano-Putnam-Skau Theorem on minimal homeomorphisms of the Cantor set. For smooth crossed products, there are many open problems.
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