The genus 1 bridge number of satellite knots

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 counterexamples 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 .

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Publication Details

Journal
Journal of the London Mathematical Society
Published
2025-08-01
DOI
https://doi.org/10.1112/jlms.70260
Primary Topic
Geometric and Algebraic Topology
Type
article
Field-Weighted Citation Impact
0.00

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article

The genus 1 bridge number of satellite knots

Maggy Tomova, Scott A. Taylor
Journal of the London Mathematical Society
Geometric and Algebraic Topology
article

The genus 1 bridge number of satellite knots

Maggy Tomova, Scott A. Taylor
article en

Abstract

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 counterexamples 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 .

Journal of the London Mathematical SocietyVol. 112(2)
University of Central Florida (US), Colby College (US)
National Science Foundation
Openalex Percentile: Top 74%
Geometric and Algebraic Topology
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