English

Cable links and L-space surgeries

Geometric Topology 2016-01-22 v2

Abstract

An L-space link is a link in S3S^3 on which all sufficiently large integral surgeries are L-spaces. We prove that for m, n relatively prime, the r-component cable link Krm,rnK_{rm,rn} is an L-space link if and only if K is an L-space knot and n/m2g(K)1n/m \geq 2g(K)-1. We also compute HFL-minus and HFL-hat of an L-space cable link in terms of its Alexander polynomial. As an application, we confirm a conjecture of Licata regarding the structure of HFL-hat for (n,n) torus links.

Keywords

Cite

@article{arxiv.1502.05425,
  title  = {Cable links and L-space surgeries},
  author = {Eugene Gorsky and Jennifer Hom},
  journal= {arXiv preprint arXiv:1502.05425},
  year   = {2016}
}

Comments

27 pages, 6 figures, 4 tables; v2: Resolved m=1 case in Theorem 1; minor revisions throughout. This is the version to appear in Quantum Topology

R2 v1 2026-06-22T08:32:49.958Z