Abstract
We recall the abstract theory of Hopf algebra bicrossproducts and double cross products due to the author. We use it to develop some less-well known results about the quantum double as a twisting, as an extension and asq-Lorentz group.
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Majid, S. Some remarks on the quantum double. Czech J Phys 44, 1059–1071 (1994). https://doi.org/10.1007/BF01690458
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DOI: https://doi.org/10.1007/BF01690458