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Paper detail

Coarse co-assembly as a ring homomorphism

The $K$-theory of the stable Higson corona of a coarse space carries a canonical ring structure. This ring is the domain of an unreduced version of the coarse co-assembly map of Emerson and Meyer. We show that the target also carries a ring structure and co-assembly is a ring homomorphism, provided that the given coarse space is contractible in a coarse sense.

preprint2014arXivOpen access
Christopher Wulff
math.OAmath.MGmath.KT
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Christopher Wulff

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