English

Rational cubic fourfolds in Hassett divisors

Algebraic Geometry 2019-05-07 v1

Abstract

We prove that every Hassett's Noether-Lefschetz divisor of special cubic fourfolds contains a union of three codimension-two subvarieties, parametrizing rational cubic fourfolds, in the moduli space of smooth cubic fourfolds.

Keywords

Cite

@article{arxiv.1905.01936,
  title  = {Rational cubic fourfolds in Hassett divisors},
  author = {Song Yang and Xun Yu},
  journal= {arXiv preprint arXiv:1905.01936},
  year   = {2019}
}

Comments

10 pages

R2 v1 2026-06-23T08:57:55.563Z