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  • Quasi-triangular Hopf algeb...
    Chen, XiaoYu

    Science China. Mathematics, 03/2017, Volume: 60, Issue: 3
    Journal Article

    We show that two module homomorphisms for groups and Lie algebras established by Xi (2012) can be generalized to the setting of quasi-triangular Hopf algebras. These module homomorphisms played a key role in his proof of a conjecture of Yau (1998). They will also be useful in the problem of decomposition of tensor products of modules. Additionally, we give another generalization of result of Xi (2012) in terms of Chevalley-Eilenberg complex.