English

Heegner divisors in the moduli space of genus three curves

Algebraic Geometry 2007-05-23 v1

Abstract

S. Kond\=o used periods of K3K3 surfaces to prove that the moduli space of genus three curves is birational to an arithmetic quotient of a complex 6-ball. In this paper we study Heegner divisors in the ball quotient, given by arithmetically defined hyperplane sections of the ball. We show that the corresponding loci of genus three curves are given by: hyperelliptic curves, singular plane quartics and plane quartics admitting certain rational "splitting curves".

Keywords

Cite

@article{arxiv.math/0510199,
  title  = {Heegner divisors in the moduli space of genus three curves},
  author = {Michela Artebani},
  journal= {arXiv preprint arXiv:math/0510199},
  year   = {2007}
}