Taut foliations from knot diagrams
Geometric Topology
2024-02-05 v1
Abstract
We prove that if a knot has a particular type of diagram then all non-trivial surgeries on contain a coorientable taut foliation. Knots admitting such diagrams include many two-bridge knots, many pretzel knots, many Montesinos knots and more generally all arborescent knots defined by weighted planar trees with more than one vertex such that all weights have absolute value greater than one, and there exists a weight with absolute value greater than two. The ideas involved in the proof can also be adapted to study surgeries on links and as an application we show that for all surgeries on the Borromean link it holds that is not an -space if and only if contains a coorientable taut foliation.
Keywords
Cite
@article{arxiv.2402.01225,
title = {Taut foliations from knot diagrams},
author = {Diego Santoro},
journal= {arXiv preprint arXiv:2402.01225},
year = {2024}
}
Comments
50 pages, 44 figures. Comments are welcome!