The quantum double for quasitriangular quasi-Hopf algebras

Details The quantum double for quasitriangular quasi-Hopf algebras The quantum double for quasitriangular quasi-Hopf algebras

2001-10-19

arxiv.org/abs/math/0110216v1

Mathematics

Quantum Algebra

15 pages

Scientific paper

Let $D(H)$ be the quantum double associated to a finite dimensional quasi-Hopf algebra $H$. In this note, we first generalize a result of Majid, stating that a finite dimensional Hopf algebra $H$ is quasitriangular if and only if there is a projection of the quantum double $D(H)$ onto $H$ covering the natural inclusion.We then prove that the quantum double of a finite dimensional quasitriangular quasi-Hopf algebra is a biproduct.

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