English

Minimal classes on the intermediate Jacobian of a generic cubic threefold

Algebraic Geometry 2018-01-09 v2

Abstract

Let X be a smooth cubic threefold. We can associate two objects to X: the intermediate Jacobian J and the Fano surface F parametrising lines on X. By a theorem of Clemens and Griffiths, the Fano surface can be embedded in the intermediate Jacobian and the cohomology class of its image is minimal. In this paper we show that if X is generic, the Fano surface is the only surface of minimal class in J.

Keywords

Cite

@article{arxiv.0802.0978,
  title  = {Minimal classes on the intermediate Jacobian of a generic cubic threefold},
  author = {Andreas Höring},
  journal= {arXiv preprint arXiv:0802.0978},
  year   = {2018}
}

Comments

14 pages, changed metadata

R2 v1 2026-06-21T10:10:25.657Z