English

On the Shafarevich conjecture for Enriques surfaces

Number Theory 2019-11-25 v2

Abstract

Enriques surfaces are minimal surfaces of Kodaira dimension 00 with b2=10b_{2}=10. If we work with a field of characteristic away from 22, Enriques surfaces admit double covers which are K3 surfaces. In this paper, we prove the Shafarevich conjecture for Enriques surfaces by reducing the problem to the case of K3 surfaces. In our formulation of the Shafarevich conjecture, we use the notion "admitting a cohomological good K3 cover", which includes not only good reduction but also flower pot reduction.

Keywords

Cite

@article{arxiv.1911.03419,
  title  = {On the Shafarevich conjecture for Enriques surfaces},
  author = {Teppei Takamatsu},
  journal= {arXiv preprint arXiv:1911.03419},
  year   = {2019}
}

Comments

5 pages

R2 v1 2026-06-23T12:09:39.239Z