English

Taut foliations from knot diagrams

Geometric Topology 2024-02-05 v1

Abstract

We prove that if a knot KK has a particular type of diagram then all non-trivial surgeries on KK contain a coorientable taut foliation. Knots admitting such diagrams include many two-bridge knots, many pretzel knots, many Montesinos knots and more generally all arborescent knots defined by weighted planar trees with more than one vertex such that 1)1) all weights have absolute value greater than one, and 2)2) there exists a weight with absolute value greater than two. The ideas involved in the proof can also be adapted to study surgeries on links and as an application we show that for all surgeries MM on the Borromean link it holds that MM is not an LL-space if and only if MM contains a coorientable taut foliation.

Keywords

Cite

@article{arxiv.2402.01225,
  title  = {Taut foliations from knot diagrams},
  author = {Diego Santoro},
  journal= {arXiv preprint arXiv:2402.01225},
  year   = {2024}
}

Comments

50 pages, 44 figures. Comments are welcome!

R2 v1 2026-06-28T14:35:34.520Z