On Krammer's Representation of the Braid Group
Representation Theory
2007-05-23 v1 Algebraic Topology
Group Theory
Geometric Topology
Abstract
A connection is made between the Krammer representation and the Birman-Murakami-Wenzl algebra. Inspired by a dimension argument, a basis is found for a certain irrep of the algebra, and relations which generate the matrices are found. Following a rescaling and change of parameters, the matrices are found to be identical to those of the Krammer representation. The two representations are thus the same, proving the irreducibility of one and the faithfulness of the other.
Cite
@article{arxiv.math/0002136,
title = {On Krammer's Representation of the Braid Group},
author = {Matthew G. Zinno},
journal= {arXiv preprint arXiv:math/0002136},
year = {2007}
}
Comments
15 pages, 4 figures. Submitted to Math Research Letters