English

L-space satellite operators and knot Floer homology

Geometric Topology 2024-12-10 v1

Abstract

We consider satellite operators where the corresponding 2-component link is an L-space link. This family includes many commonly studied satellite operators, including cabling operators, the Whitehead operator, and a family of Mazur operators. We give a formula which computes the knot Floer complex of a satellite of KK in terms of the knot Floer complex of KK. Our main tools are the Heegaard Floer Dehn surgery formulas and their refinements. A key step in our computation is a proof that 2-component L-space links have formal knot Floer complexes. We use this to show that the link Floer complexes of 2-component L-space links are determined by their multivariable Alexander polynomials. We implement our satellite formula in Python code, which we also make available.

Keywords

Cite

@article{arxiv.2412.05755,
  title  = {L-space satellite operators and knot Floer homology},
  author = {Daren Chen and Ian Zemke and Hugo Zhou},
  journal= {arXiv preprint arXiv:2412.05755},
  year   = {2024}
}

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116 pages