Twisted Alexander vanishing order of knots
Geometric Topology
2025-04-25 v2
Abstract
Based on a vanishing theorem for non-fibered knots due to Friedl and Vidussi, we define the twisted Alexander vanishing order of a knot to be the order of the smallest finite group such that the corresponding twisted Alexander polynomial is zero. In this paper, we show its basic properties, and provide several explicit values for knots with or fewer crossings. Moreover, we characterize a finite group admitting the zero-twisted Alexander polynomial.
Cite
@article{arxiv.2310.10936,
title = {Twisted Alexander vanishing order of knots},
author = {Katsumi Ishikawa and Takayuki Morifuji and Masaaki Suzuki},
journal= {arXiv preprint arXiv:2310.10936},
year = {2025}
}
Comments
17 pages, 1 figure, to appear in Ann. Inst. Fourier