On the topology of arrangements of a cubic and its inflectional tangents
arXiv:1607.07618
Abstract
A -Artal arrangement is a reducible algebraic curve composed of a smooth cubic and inflectional tangents. By studying the topological properties of their subarrangements, we prove that for , there exist Zariski pairs of -Artal arrangements. These Zariki pairs can be distinguished in a geometric way by the number of collinear triples in the set of singular points contained in the cubic.
6 pages