Ineffective descent of genus one curves
Algebraic Geometry
2015-01-20 v1
Abstract
Raynaud proved in 1968 that etale descent of genus one curves is not effective in general. In this paper we provide an alternative, simplified construction of this phenomenon. Our counterexample is fully explicit.
Cite
@article{arxiv.1501.04304,
title = {Ineffective descent of genus one curves},
author = {Wouter Zomervrucht},
journal= {arXiv preprint arXiv:1501.04304},
year = {2015}
}