English

Primality of theta-curves with proper rational tangle unknotting number one

Geometric Topology 2022-01-21 v1

Abstract

We show that if a composite θ\theta-curve has (proper rational) unknotting number one, then it is the order 2 sum of a (proper rational) unknotting number one knot and a trivial θ\theta-curve. We also prove similar results for 2-strand tangles and knotoids.

Keywords

Cite

@article{arxiv.2201.08213,
  title  = {Primality of theta-curves with proper rational tangle unknotting number one},
  author = {Kenneth L. Baker and Dorothy Buck and Danielle O'Donnol and Allison H. Moore and Scott Taylor},
  journal= {arXiv preprint arXiv:2201.08213},
  year   = {2022}
}