Equivariant Poincaré duality for quantum group actions |
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Authors: | Ryszard Nest |
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Affiliation: | a Institut for Matematiske Fag, Universitet København, Universitetsparken 5, 2100 København, Denmark b Mathematisches Institut, Georg-August-Universität Göttingen, Bunsenstraße 3-5, 37073 Göttingen, Germany |
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Abstract: | We extend the notion of Poincaré duality in KK-theory to the setting of quantum group actions. An important ingredient in our approach is the replacement of ordinary tensor products by braided tensor products. Along the way we discuss general properties of equivariant KK-theory for locally compact quantum groups, including the construction of exterior products. As an example, we prove that the standard Podle? sphere is equivariantly Poincaré dual to itself. |
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Keywords: | Quantum groups Kasparov theory Poincaré duality |
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