English

Tangle contact homology

Symplectic Geometry 2024-10-16 v4 Geometric Topology

Abstract

Knot contact homology is an ambient isotopy invariant of knots and links in R3\mathbb R^3. The purpose of this paper is to extend this definition to an ambient isotopy invariant of tangles and prove that gluing of tangles gives a gluing formula for knot contact homology. As a consequence of the gluing formula we obtain that the tangle contact homology detects triviality of tangles.

Keywords

Cite

@article{arxiv.2210.03036,
  title  = {Tangle contact homology},
  author = {Johan Asplund},
  journal= {arXiv preprint arXiv:2210.03036},
  year   = {2024}
}

Comments

45 pages, 26 figures. v4: Final version. Weak detection of trivial tangles upgraded to detection. Numerous expositional improvements. Comments welcome

R2 v1 2026-06-28T02:56:47.414Z