English

Integer surgeries rational homology cobordant to lens spaces

Geometric Topology 2024-06-24 v2

Abstract

The Cyclic Surgery Theorem and Moser's work on surgeries on torus knots imply that for any non-trivial knot in S3S^3, there are at most two integer surgeries that produce a lens space. This paper investigates how many positive integer surgeries on a given knot in S3S^3 can produce a manifold rational homology cobordant to a lens space. Tools include Greene and McCoy's work on changemaker lattices which come from Heegaard Floer dd-invariants, and Aceto-Celoria-Park's work on rational cobordisms and integral homology which is based on Lisca's work on lens spaces.

Keywords

Cite

@article{arxiv.2405.11736,
  title  = {Integer surgeries rational homology cobordant to lens spaces},
  author = {Antony T. H. Fung},
  journal= {arXiv preprint arXiv:2405.11736},
  year   = {2024}
}

Comments

Minor revision: Included examples of knots in $S^3$ with 5 lensbordant surgeries in Section 1