Dualizable Tensor Categories (Memoirs of the American Mathematical Society, 268) free ebook download.

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Dualizable Tensor Categories (Memoirs of the American Mathematical Society, 268) free ebook download

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Author(s):	Christopher L. Douglas

Date:	2021	Format:	pdf	Language:	English	ISBN/ASIN:	1470443619
Pages:	88	OCR:		Quality:		ISBN13:
Uploader:	risotor	Upload Date:	9/3/2022 8:44:36 AM

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"We investigate the relationship between the algebra of tensor categories and the topology of framed 3-manifolds. On the one hand, tensor categories with certain algebraic properties determine topological invariants. We prove that fusion categories of nonzero global dimension are 3-dualizable, and therefore provide 3- dimensional 3-framed local field theories. We also show that all finite tensor categories are 2-dualizable, and yield categorified 2-dimensional 3-framed local field theories. On the other hand, topological properties of 3-framed manifolds determine algebraic equations among functors of tensor categories. We show that the 1-dimensional loop bordism, which exhibits a single full rotation, acts as the double dual autofunctor of a tensor category. We prove that the 2-dimensional belt-trick bordism, which unravels a double rotation, operates on any finite tensor category, and therefore supplies a trivialization of the quadruple dual. This approach produces a quadruple-dual theorem for suitably dualizable objects in any symmetric monoidal 3-category. There is furthermore a correspondence between algebraic structures on tensor categories and homotopy fixed point structures, which in turn provide structured field theories  we describe the expectedconnection between pivotal tensor categories and combed fixed point structures, and between spherical tensor categories and oriented fixed point structures"--
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Tags: American Categories Dualizable Mathematical Memoirs Society Tensor

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