Satellite Operations and $θ$

Fuente: arXiv
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Main Authors: McConkey, Rob, Seaton, Luke J
Format: Preprint
Published: 2025
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author McConkey, Rob
Seaton, Luke J
author_facet McConkey, Rob
Seaton, Luke J
contents We study the behavior of the knot invariant $θ$ under satellite operations. First, we prove that $θ$ is additive under connected sum. We then introduce a computational tool to generate $t$-twisted Whitehead doubles and apply it to explore the case of untwisted Whitehead doubles. We propose a conjecture describing the behavior of $θ$ on untwisted Whitehead doubles and verify the conjecture for the first 2977 prime knots. The pair of invariants $Θ= (Δ,θ)$ was introduced by Bar-Natan and van der Veen, where $Δ$ is the Alexander polynomial. The invariant $θ$ is easily computable and effective at distinguishing knots. Further exploration of satellite operations and $θ$ is proposed to reveal new patterns among cables and general satellites.
format Preprint
id arxiv_https___arxiv_org_abs_2509_22939
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Satellite Operations and $θ$
McConkey, Rob
Seaton, Luke J
Geometric Topology
57K14
We study the behavior of the knot invariant $θ$ under satellite operations. First, we prove that $θ$ is additive under connected sum. We then introduce a computational tool to generate $t$-twisted Whitehead doubles and apply it to explore the case of untwisted Whitehead doubles. We propose a conjecture describing the behavior of $θ$ on untwisted Whitehead doubles and verify the conjecture for the first 2977 prime knots. The pair of invariants $Θ= (Δ,θ)$ was introduced by Bar-Natan and van der Veen, where $Δ$ is the Alexander polynomial. The invariant $θ$ is easily computable and effective at distinguishing knots. Further exploration of satellite operations and $θ$ is proposed to reveal new patterns among cables and general satellites.
title Satellite Operations and $θ$
topic Geometric Topology
57K14
url https://arxiv.org/abs/2509.22939