English

Sutured contact homology, conormal stops and hyperbolic knots

Symplectic Geometry 2022-06-17 v1

Abstract

We apply the conormal construction to a hyperbolic knot KS3K \subset S^3, and study the sutured contact manifold (V,ξ)(V, \xi) obtained by taking the complement of a standard neighbourhood of the unit conormal \LaK(STS3,ξst)\La_K \subset (ST^*S^3, \xi_\text{st}). We show that the sutured Legendrian contact homology of a unit fiber \La0\La_0, with its product structure, is a complete invariant of the knot (up to mirror). This can also be seen as the computation of the homology of the fiber in STS3ST^* S^3, stopped at \LaK\La_K. Our main tool is, for any submanifold NMN \subset M, an explicit relationship between the complement of a unit conormal \LaN\La_N, and the unit bundle of MNM \setminus N.

Keywords

Cite

@article{arxiv.2206.07782,
  title  = {Sutured contact homology, conormal stops and hyperbolic knots},
  author = {Côme Dattin},
  journal= {arXiv preprint arXiv:2206.07782},
  year   = {2022}
}

Comments

41 pages, 8 figures, comments welcome