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Hopf algebras with trace and representations

C. DeConcini, C. Procesi, N. Reshetikhin, M. Rosso

math.QAarXiv:math/0304313

Abstract

We study the restriction of representations of Cayley-Hamilton algebras to subalgebras. This theory is applied to determine tensor products and branching rules for representations of quantum groups at roots of 1.

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