Some remarks on braided group reconstruction and braided doubles |
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Authors: | S. Majid |
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Affiliation: | (1) Dept. of Applied Math. and Theoretical Physics, Silver St., Cambridge, CB3 9EW, UK |
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Abstract: | The cross coproduct braided group AutC)B is obtained by Tannaka-Krein reconstruction from CB C for a braided group B in braided category C. We apply this construction to obtain partial solutions to two problems in braided group theory, namely the tensor problem and the braided double. We obtain AutC) Aut(C) Aut(C) Aut(C) and higher braided group spin chains. The example B(R) B(R) ... B(R) is described explicitly by R-matrix relations. We also obtain Aut(C) Aut(C)* as a dual quasitriangular codouble braided group by reconstruction from the dual category C° C. General braided double crossproducts B C are also considered. |
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