Mordell-Weil groups and Zariski triples

Details Mordell-Weil groups and Zariski triples Mordell-Weil groups and Zariski triples

2011-11-24

arxiv.org/abs/1111.5703v1

Mathematics

Algebraic Geometry

Scientific paper

We prove the existence of three irreducible curves $C_{12,m}$ of degree 12 with the same number of cusps and different Alexander polynomials. This exhibits a Zariski triple. Moreover we provide a set of generators for the elliptic threefold with constant $j$-invariant 0 and discriminant curve $C_{12,m}$. Finally we consider general degree $d$ base change of $C_{12d,m}$ and calculate the dimension of the equisingular deformation space.

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