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A Categorical Structure for the Virtual Braid Group
Authors:Louis H. Kauffman  Sofia Lambropoulou
Affiliation:1. Department of Mathematics, Statistics, and Computer Science , University of Illinois at Chicago , Chicago, Illinois, USA kauffman@math.uic.edu;3. Departament of Mathematics , National Technical University of Athens , Athens, Greece
Abstract:
This article gives a new interpretation of the virtual braid group in terms of a strict monoidal category SC that is freely generated by one object and three morphisms, two of the morphisms corresponding to basic pure virtual braids and one morphism corresponding to a transposition in the symmetric group. This point of view makes many relationships between the virtual braid group and the pure virtual braid group apparent, and makes representations of the virtual braid groups and pure virtual braid groups via solutions to the algebraic Yang–Baxter Equation equally transparent. In this categorical framework, the virtual braid group has nothing to do with the plane and nothing to do with virtual crossings. It is a natural group associated with the structure of algebraic braiding.
Keywords:Pure virtual braid group  Pure welded braid group  Virtual braid group  Welded braid group
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