Making nontrivially associated modular categories from finite groups

نویسندگان

  • M. M. Al-Shomrani
  • Edwin J. Beggs
چکیده

We show that the double of the nontrivially associated tensor category constructed from left coset representatives of a subgroup of a finite group X is a modular category. Also we give a definition of the character of an object in this category as an element of a braided Hopf algebra in the category. This definition is shown to be adjoint invariant and multiplicative on tensor products. A detailed example is given. Finally, we show an equivalence of categories between the nontrivially associated double and the trivially associated category of representations of the Drinfeld double of the group D(X).

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عنوان ژورنال:
  • Int. J. Math. Mathematical Sciences

دوره 2004  شماره 

صفحات  -

تاریخ انتشار 2004