English

Effective bounds on characterising slopes for all knots

Geometric Topology 2025-11-06 v2

Abstract

A slope p/qp/q is characterising for a knot KS3K \subset \mathbb{S}^3 if the orientation-preserving homeomorphism type of the manifold SK3(p/q)\mathbb{S}^3_K(p/q) obtained by performing Dehn surgery of slope p/qp/q along KK uniquely determines the knot KK. We combine new applications of results from hyperbolic geometry with previous individual work of the authors to determine, for any given knot KK, an explicit bound C(K)\mathcal{C}(K) such that q>C(K)|q| > \mathcal{C}(K) implies that p/qp/q is a characterising slope for KK. Furthermore, we find an optimal such C(K)\mathcal{C}(K) for certain satellite knots with winding number zero patterns.

Keywords

Cite

@article{arxiv.2410.24209,
  title  = {Effective bounds on characterising slopes for all knots},
  author = {Patricia Sorya and Laura Wakelin},
  journal= {arXiv preprint arXiv:2410.24209},
  year   = {2025}
}

Comments

Trans. Amer. Math. Soc. (to appear); 2 figures, 1 table

R2 v1 2026-06-28T19:43:18.818Z