Abstract
We define and provide some basic analysis of various types of crossed products by semimultiplicative sets, and then prove a $KK$-theoretical descent homomorphisms for semimultiplicative sets in accord with the descent homomorphism for discrete groups.
Citation
Bernhard Burgstaller. "A descent homomorphism for semimultiplicative sets." Rocky Mountain J. Math. 44 (3) 809 - 851, 2014. https://doi.org/10.1216/RMJ-2014-44-3-809
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