Linking forms of amphichiral knots
Geometric Topology
2017-07-07 v3
Abstract
We give a simple obstruction for a knot to be amphichiral, in terms of the homology of the 2-fold branched cover. We work with unoriented knots, and so obstruct both positive and negative amphichirality.
Keywords
Cite
@article{arxiv.1706.07940,
title = {Linking forms of amphichiral knots},
author = {Stefan Friedl and Allison N. Miller and Mark Powell},
journal= {arXiv preprint arXiv:1706.07940},
year = {2017}
}
Comments
Version 2 has a new title to better reflect what is new in the paper, and historical references have been updated. 7 pages