Minor theory for quasipositive surfaces
Geometric Topology
2021-04-26 v1
Abstract
The set of quasipositive surfaces is closed under incompressible inclusion. We prove that the induced order on fibre surfaces of positive braid links is almost a well-quasi-order. When restricting to quasipositive surfaces containing a fixed root of a full twist, we get an actual well-quasi-order.
Cite
@article{arxiv.2104.11447,
title = {Minor theory for quasipositive surfaces},
author = {Sebastian Baader and Pierre Dehornoy and Livio Liechti},
journal= {arXiv preprint arXiv:2104.11447},
year = {2021}
}
Comments
7 pages