English

Constructing Thompson representatives via pointed links

Geometric Topology 2025-11-27 v1 Group Theory

Abstract

We extend Jones' construction to obtain a surjective map from the Brown-Thompson group F3F_3 to the set of pointed links up to pointed isotopy. We then introduce an operation on F3F_3, and use it to define a new monoid (F3,)(F_3, \diamond), called the central monoid. Using the extended version of Jones' construction, we obtain a surjective monoid homomorphism from the central monoid to the monoid of pointed links with connected sum. This allows us to introduce a standard form for connected sum representatives in F3F_3, and we extend this construction to a certain family of links by defining disjoint union and linking moves on F3F_3.

Cite

@article{arxiv.2511.21259,
  title  = {Constructing Thompson representatives via pointed links},
  author = {Susanna Terron},
  journal= {arXiv preprint arXiv:2511.21259},
  year   = {2025}
}

Comments

32 pages, 25 figures. Comments welcome!

R2 v1 2026-07-01T07:55:57.554Z