An infinite family of counterexamples to Batson's conjecture
Geometric Topology
2020-11-03 v1
Abstract
Batson's conjecture is a non-orientable version of Milnor's conjecture, which states that the 4-ball genus of a torus knot is equal to . Batson's conjecture states that the nonorientable 4-ball genus is equal to the pinch number of a torus knot, i.e. the number of a specific type of (nonorientable) band surgeries needed to obtain the unknot. The conjecture was recently proved to be false by Lobb. We will show that Lobb's counterexample fits into an infinite family of counterexamples.
Keywords
Cite
@article{arxiv.2011.00122,
title = {An infinite family of counterexamples to Batson's conjecture},
author = {Vincent Longo},
journal= {arXiv preprint arXiv:2011.00122},
year = {2020}
}
Comments
10 pages, 8 figures