English

The congruence subgroup problem for braid groups: Thurston's proof

Geometric Topology 2014-03-07 v2 Group Theory

Abstract

In this article we present an unpublished proof of W. Thurston that pure braid groups have the congruence subgroup property.

Keywords

Cite

@article{arxiv.0901.4663,
  title  = {The congruence subgroup problem for braid groups: Thurston's proof},
  author = {D. B. McReynolds},
  journal= {arXiv preprint arXiv:0901.4663},
  year   = {2014}
}

Comments

Version 2. Expanded with numerous mistakes from the Version 1 fixed.

R2 v1 2026-06-21T12:05:54.313Z