Cyclotomic Birman–Wenzl–Murakami Algebras, II: Admissibility Relations and Freeness
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- Goodman, F.M. & Mosley, H.H. Algebr Represent Theor (2011) 14: 1. doi:10.1007/s10468-009-9173-2
The cyclotomic Birman-Wenzl-Murakami algebras are quotients of the affine BMW algebras in which the affine generator satisfies a polynomial relation. We study admissibility conditions on the ground ring for these algebras, and show that the algebras defined over an admissible integral ground ring S are free S-modules and isomorphic to cyclotomic Kauffman tangle algebras. We also determine the representation theory in the generic semisimple case, obtain a recursive formula for the weights of the Markov trace, and give a sufficient condition for semisimplicity.