Normal Hopf subalgebras of semisimple Drinfeld doubles
- Autores: Sebastian Burciu
- Localización: Journal of pure and applied algebra, ISSN 0022-4049, Vol. 218, Nº 3, 2014, págs. 540-552
- Idioma: inglés
- DOI: 10.1016/j.jpaa.2013.07.004
- Enlaces
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Resumen
In this paper we study normal Hopf subalgebras of a semisimple Drinfeld double. This is realized by considering an analogue of Goursat�s lemma concerning fusion subcategories of Deligne products of two fusion categories. As an application we show that the Drinfeld double of any abelian extension is also an abelian extension.
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