English

Braid representatives minimizing the number of simple walks

Geometric Topology 2023-01-10 v3

Abstract

Given a knot, we develop methods for finding the braid representative that minimizes the number of simple walks. Such braids lead to an efficient method for computing the colored Jones polynomial of KK, following an approach developed by Armond and implemented by Hajij and Levitt. We use this method to compute the colored Jones polynomial in closed form for the knots 52,61,5_2, 6_1, and 727_2. The set of simple walks can change under reflection, rotation, and cyclic permutation of the braid, and we prove an invariance property which relates the simple walks of a braid to those of its reflection under cyclic permutation. We study the growth rate of the number of simple walks for families of torus knots. Finally, we present a table of braid words that minimize the number of simple walks for knots up to 13 crossings.

Keywords

Cite

@article{arxiv.2109.11483,
  title  = {Braid representatives minimizing the number of simple walks},
  author = {Hans U. Boden and Matthew Shimoda},
  journal= {arXiv preprint arXiv:2109.11483},
  year   = {2023}
}

Comments

Minor revision with sagemath programs and datasets as ancillary files. These files are also available from http://www.math.mcmaster.ca/~boden

R2 v1 2026-06-24T06:16:02.834Z