English

A new family of infinitely braided Thompson's groups

Group Theory 2020-07-31 v3 Geometric Topology

Abstract

We present a generalization of the Dehornoy-Brin braided Thompson group BV2BV_2 that uses recursive braids. Our new groups are denoted by BVn,r(H)BV_{n,r}(H), for all n2,r1n\geq 2,r\geq 1 and HBnH \leq \mathcal{B}_n, where Bn\mathcal{B}_n is the braid group on nn strands. We give a new approach to deal with braided Thompson groups by using strand diagrams. We show that BVn,r(H)BV_{n,r}(H) is finitely generated if HH is finitely generated.

Keywords

Cite

@article{arxiv.2005.09593,
  title  = {A new family of infinitely braided Thompson's groups},
  author = {Julio Aroca and María Cumplido},
  journal= {arXiv preprint arXiv:2005.09593},
  year   = {2020}
}

Comments

25 pages, 19 figures