English

G\"opel Varieties

Algebraic Geometry 2025-07-21 v2

Abstract

We show that the Coble hypersurfaces, uniquely characterized by the remarkable property that their singular loci are an abelian surface and a Kummer threefold, respectively, belong to a family of hypersurfaces exhibiting similar behavior, but defined in various types of homogeneous spaces. With the help of Jordan-Vinberg theory, we show how these hypersurfaces can be parametrized by G{\"o}pel type varieties inside projectivized representations of complex reflection groups.

Keywords

Cite

@article{arxiv.2506.22030,
  title  = {G\"opel Varieties},
  author = {Vladimiro Benedetti and Michele Bolognesi and Daniele Faenzi and Laurent Manivel},
  journal= {arXiv preprint arXiv:2506.22030},
  year   = {2025}
}

Comments

Ancillary code files (hopefully) added. 48 pages, comments welcome!

R2 v1 2026-07-01T03:36:02.928Z