English

Most irreducible representations of the 3-string braid group

Rings and Algebras 2013-03-21 v1 Representation Theory

Abstract

As the 3-string braid group B(3) and the modular group PSL(2,Z) are both of wild representation type one cannot expect a full classification of all their finite dimensional simple representations. Still, one can aim to describe 'most' irreducible representations by constructing for each d-dimensional irreducible component X of the variety iss(n,B(3)) classifying the isomorphism classes of semi-simple n-dimensional representations of B(3) an explicit minimal etale rational map A^d --> X having a Zariski dense image. Such rational dense parametrizations were obtained for all components when n < 12 in \cite{arXiv:1003.1610v1}. The aim of the present paper is to establish such parametrizations for all finite dimensions n.

Keywords

Cite

@article{arxiv.1303.4907,
  title  = {Most irreducible representations of the 3-string braid group},
  author = {Lieven Le Bruyn},
  journal= {arXiv preprint arXiv:1303.4907},
  year   = {2013}
}
R2 v1 2026-06-21T23:45:04.192Z