Abstract
A linear Gr-category is a category of finite-dimensional vector spaces graded by a finite group together with the natural tensor product. We classify the braided monoidal structures of a class of linear Gr-categories via explicit computations of the normalized 3-cocycles and the quasi-bicharacters of finite abelian groups which are direct product of two cyclic groups.
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Supported by the NSFC grants 10971206 and 11071111, the SDNSF grant 2009ZRA01128 and the IIFSDU grant 2010TS021.
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Huang, HL., Liu, G. & Ye, Y. The Braided Monoidal Structures on a Class of Linear Gr-Categories. Algebr Represent Theor 17, 1249–1265 (2014). https://doi.org/10.1007/s10468-013-9445-8
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DOI: https://doi.org/10.1007/s10468-013-9445-8