English

Cappell-Shaneson knot pairs with the same Alexander polynomial

Geometric Topology 2026-04-02 v1 Algebraic Topology Number Theory

Abstract

It is well known that for m2m\geq 2 there are at most two non-equivalent mm-knots with diffeomorphic exterior. Such pair of knots will be called  non-reflexive knot pair\textit{ non-reflexive knot pair}. A classical problem in topology is to determine all dimensions where such knot pairs exist. In 1976 Cappell and Shaneson gave a method of constructing non-reflexive knot pairs. In the present paper we construct an infinite family of new examples of Cappell-Shaneson knot pairs, and give examples of Cappell-Shaneson knot pairs that have the same Alexander polynomial but are inequivalent.

Keywords

Cite

@article{arxiv.2604.01045,
  title  = {Cappell-Shaneson knot pairs with the same Alexander polynomial},
  author = {Hisaaki Endo and Kazunori Iwaki and Andrei Pajitnov},
  journal= {arXiv preprint arXiv:2604.01045},
  year   = {2026}
}

Comments

16 pages, 3 figures