Knot primality: knot Floer homology, metacyclic representations and twisted homology

Fuente: arXiv
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Main Authors: Allen, Samantha, Livingston, Charles
Format: Preprint
Published: 2025
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author Allen, Samantha
Livingston, Charles
author_facet Allen, Samantha
Livingston, Charles
contents We develop purely algebraic methods for proving that a knot is prime. Our approach uses the Heegaard Floer polynomial in conjunction with classical knot-theoretic methods: cyclic, dihedral, and metacyclic covering spaces. The theory of twisted homology allows us to view these approaches from a unified perspective. Collectively, the primality tests developed here have proved primality for over 99.6% of knots in large families of prime knots, including all prime knots with 15 or fewer crossings.
format Preprint
id arxiv_https___arxiv_org_abs_2508_08102
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Knot primality: knot Floer homology, metacyclic representations and twisted homology
Allen, Samantha
Livingston, Charles
Geometric Topology
We develop purely algebraic methods for proving that a knot is prime. Our approach uses the Heegaard Floer polynomial in conjunction with classical knot-theoretic methods: cyclic, dihedral, and metacyclic covering spaces. The theory of twisted homology allows us to view these approaches from a unified perspective. Collectively, the primality tests developed here have proved primality for over 99.6% of knots in large families of prime knots, including all prime knots with 15 or fewer crossings.
title Knot primality: knot Floer homology, metacyclic representations and twisted homology
topic Geometric Topology
url https://arxiv.org/abs/2508.08102