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The Tannakian radical and the mantle of a braided fusion category

Authors :
Green, Jason
Nikshych, Dmitri
Publication Year :
2024

Abstract

We define the Tannakian radical of a braided fusion category $\mathcal{C}$ as the intersection of its maximal Tannakian subcategories. The localization of $\mathcal{C}$ corresponding to the Tannakian radical, termed the mantle of $\mathcal{C}$, admits a canonical central extension that serves as a complete invariant of $\mathcal{C}$. The mantle has a trivial Tannakian radical, and we refer to braided fusion categories with this property as reductive. We investigate the properties and structure of reductive categories and prove several classification results.<br />Comment: 31 pages, comments are welcome

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2412.16722
Document Type :
Working Paper