English

Kummer sandwiches and Greene-Plesser construction

Algebraic Geometry 2022-05-31 v2 Number Theory

Abstract

In the context of K3 mirror symmetry, the Greene-Plesser orbifolding method constructs a family of K3 surfaces, the mirror of quartic hypersurfaces in P3\mathbb{P}^3, starting from a special one-parameter family of K3 varieties known as the quartic Dwork pencil. We show that certain K3 double covers obtained from the three-parameter family of quartic Kummer surfaces associated with a principally polarized abelian surface generalize the relation of the Dwork pencil and the quartic mirror family. Moreover, for the three-parameter family we compute a formula for the rational point-count of its generic member and derive its transformation behavior with respect to (2,2)(2,2)-isogenies of the underlying abelian surface.

Keywords

Cite

@article{arxiv.1912.06951,
  title  = {Kummer sandwiches and Greene-Plesser construction},
  author = {Noah Braeger and Andreas Malmendier and Yih Sung},
  journal= {arXiv preprint arXiv:1912.06951},
  year   = {2022}
}

Comments

27 pages; minor typos corrected in version 2

R2 v1 2026-06-23T12:46:09.836Z