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Authors
Affiliations
1 Department of Mathematics, University of Denver, Denver, CO 80208, US
Source
Journal of the Ramanujan Mathematical Society, Vol 25, No 2 (2010), Pagination: 193-231
Abstract
We describe the structure of the irreducible representations of crossed products of unital C*-algebras by actions of finite groups in terms of irreducible representations of the C*-algebras on which the groups act. We then apply this description to derive a characterization of irreducible representations of crossed-products by finite cyclic groups in terms of representations of the C*-algebra and its fixed point subalgebra. These results are applied to crossed-products by the permutation group on three elements and illustrated by various examples.