English

Determinantal Quintics and Mirror Symmetry of Reye Congruences

Algebraic Geometry 2012-09-06 v2 High Energy Physics - Theory

Abstract

We study a certain family of determinantal quintic hypersurfaces in P4\mathbb{P}^{4} whose singularities are similar to the well-studied Barth-Nieto quintic. Smooth Calabi-Yau threefolds with Hodge numbers (h1,1,h2,1)=(52,2)(h^{1,1},h^{2,1})=(52,2) are obtained by taking crepant resolutions of the singularities. It turns out that these smooth Calabi-Yau threefolds are in a two dimensional mirror family to the complete intersection Calabi-Yau threefolds in P4×P4\mathbb{P}^{4}\times\mathbb{P}^{4} which have appeared in our previous study of Reye congruences in dimension three. We compactify the two dimensional family over P2\mathbb{P}^{2} and reproduce the mirror family to the Reye congruences. We also determine the monodromy of the family over P2\mathbb{P}^{2} completely. Our calculation shows an example of the orbifold mirror construction with a trivial orbifold group.

Keywords

Cite

@article{arxiv.1208.1813,
  title  = {Determinantal Quintics and Mirror Symmetry of Reye Congruences},
  author = {Shinobu Hosono and Hiromichi Takagi},
  journal= {arXiv preprint arXiv:1208.1813},
  year   = {2012}
}

Comments

47 pages, 8 figures; acknowledgement added