English

Unperturbed weakly reducible non-minimal bridge positions

Geometric Topology 2022-01-26 v1

Abstract

A bridge position of a knot is said to be perturbed if there exists a cancelling pair of bridge disks. Motivated by the examples of knots admitting unperturbed strongly irreducible non-minimal bridge positions due to Jang-Kobayashi-Ozawa-Takao, we derive examples of unperturbed weakly reducible non-minimal bridge positions. Also, a bridge version of Gordon's Conjecture is proposed: the connected sum of unperturbed bridge positions is unperturbed.

Keywords

Cite

@article{arxiv.2201.10153,
  title  = {Unperturbed weakly reducible non-minimal bridge positions},
  author = {Jung Hoon Lee},
  journal= {arXiv preprint arXiv:2201.10153},
  year   = {2022}
}

Comments

6 pages, 3 figures