Triangular curves and cyclotomic Zariski tuples
Algebraic Geometry
2019-11-28 v2
Abstract
The purpose of this paper is to exhibit infinite families of conjugate projective curves in a number field whose complement have the same abelian fundamental group, but are non-homeomorphic. In particular, for any we find Zariski tuples parametrized by the -roots of unity up to complex conjugation. As a consequence, for any divisor of , , we find arithmetic Zariski -tuples with coefficients in the corresponding cyclotomic field. These curves have abelian fundamental group and they are distinguished using a linking invariant.
Cite
@article{arxiv.1904.09305,
title = {Triangular curves and cyclotomic Zariski tuples},
author = {Enrique Artal Bartolo and Jose I. Cogolludo-Agustin and Jorge Martín-Morales},
journal= {arXiv preprint arXiv:1904.09305},
year = {2019}
}
Comments
15 pages, 3 figures. To appear in Collectanea Mathematica