The genus 1 bridge number of satellite knots
Geometric Topology
2025-07-18 v2
Abstract
Let be a satellite knot, link, or spatial graph in a 3-manifold that is either or a lens space. Let and denote genus 0 and genus 1 bridge number, respectively. Suppose that has a companion knot (necessarily not the unknot) and wrapping number with respect to . When is not a torus knot, we show that . There are previously known counter-examples if is a torus knot. Along the way, we generalize and give a new proof of Schubert's result that . We also prove versions of the theorem applicable to when is a ``lensed satellite'' and when there is a torus separating components of .
Keywords
Cite
@article{arxiv.2401.01834,
title = {The genus 1 bridge number of satellite knots},
author = {Scott A. Taylor and Maggy Tomova},
journal= {arXiv preprint arXiv:2401.01834},
year = {2025}
}
Comments
Accepted by Journal of the London Mathematical Society