English

Unbraiding the braided tensor product

Quantum Algebra 2009-10-31 v2 High Energy Physics - Theory

Abstract

We show that the braided tensor product algebra A1A2A_1\underline{\otimes}A_2 of two module algebras A1,A2A_1, A_2 of a quasitriangular Hopf algebra HH is equal to the ordinary tensor product algebra of A1A_1 with a subalgebra of A1A2A_1\underline{\otimes}A_2 isomorphic to A2A_2, provided there exists a realization of HH within A1A_1. In other words, under this assumption we construct a transformation of generators which `decouples' A1,A2A_1, A_2 (i.e. makes them commuting). We apply the theorem to the braided tensor product algebras of two or more quantum group covariant quantum spaces, deformed Heisenberg algebras and q-deformed fuzzy spheres.

Keywords

Cite

@article{arxiv.math/0007174,
  title  = {Unbraiding the braided tensor product},
  author = {Gaetano Fiore and Harold Steinacker and Julius Wess},
  journal= {arXiv preprint arXiv:math/0007174},
  year   = {2009}
}

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