Items related to Functorial Knot Theory: Categories Of Tangles, Coherence,...

Functorial Knot Theory: Categories Of Tangles, Coherence, Categorical Deformations And Topological Invariants: 26 (Series on Knots & Everything) - Hardcover

Yetter, David N

 
9789810244439: Functorial Knot Theory: Categories Of Tangles, Coherence, Categorical Deformations And Topological Invariants: 26 (Series on Knots & Everything)

Synopsis

Almost since the advent of skein-theoretic invariants of knots and links (the Jones, HOMFLY, and Kauffman polynomials), the important role of categories of tangles in the connection between low-dimensional topology and quantum-group theory has been recognized. The rich categorical structures naturally arising from the considerations of cobordisms have suggested functorial views of topological field theory.This book begins with a detailed exposition of the key ideas in the discovery of monoidal categories of tangles as central objects of study in low-dimensional topology. The focus then turns to the deformation theory of monoidal categories and the related deformation theory of monoidal functors, which is a proper generalization of Gerstenhaber's deformation theory of associative algebras. These serve as the building blocks for a deformation theory of braided monoidal categories which gives rise to sequences of Vassiliev invariants of framed links, and clarify their interrelations.

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