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arxiv: 1204.4836 · v5 · pith:3T2BSNIZnew · submitted 2012-04-21 · 🧮 math.QA

Rank 4 Premodular Categories

classification 🧮 math.QA
keywords premodularcategoriesrankclassificationcategorycompleteconsiderequivalence
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We consider the classification problem for rank 4 premodular categories. We uncover a formula for the 2nd Frobenius-Schur indicator of a premodular category, and complete the classification of rank 4 premodular categories (up to Grothendieck equivalence).

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