The reductivity of spherical curves Part II: 4-gons
Geometric Topology
2017-03-23 v2
Abstract
The reductivity of a spherical curve represents how reduced the spherical curve is. It is unknown if there exists a spherical curve whose reductivity is four. In this paper we give an unavoidable set for spherical curves with reductivity four by considering 4-gons.
Cite
@article{arxiv.1603.07811,
title = {The reductivity of spherical curves Part II: 4-gons},
author = {Yui Onoda and Ayaka Shimizu},
journal= {arXiv preprint arXiv:1603.07811},
year = {2017}
}
Comments
15 pages, 20 figures, to appear in Tokyo Journal of Mathematics