Homotopy ribbon concordance and Alexander polynomials
Geometric Topology
2020-07-24 v3
Abstract
We show that if a link J in the 3-sphere is homotopy ribbon concordant to a link L then the Alexander polynomial of L divides the Alexander polynomial of J.
Cite
@article{arxiv.1907.09031,
title = {Homotopy ribbon concordance and Alexander polynomials},
author = {Stefan Friedl and Mark Powell},
journal= {arXiv preprint arXiv:1907.09031},
year = {2020}
}
Comments
7 pages. Version 2 extends the result to Alexander polynomials of links. Version 3 incorporates referee's comments, to appear in Archiv der Mathematik