Topological reconstruction theorems over uncountable algebraically closed fields
Algebraic Geometry
2026-07-16 v1
Abstract
Working over uncountable algebraically closed fields, we extend the theorems of Koll\'ar-Lieblich-Olsson-Sawin on reconstructing varieties from their Zariski topological spaces. In particular, we adapt their results to arbitrary quasi-projective varieties in arbitrary characteristic, and thus we give positive answers to each of the relevant `speculations' made by the original authors in our setting. Our proofs use techniques from model theory: in particular, we employ a general model-theoretic setting for algebro-geometric reconstruction problems, known as the `Zilber trichotomy for ACF-relics'.
Cite
@article{arxiv.2607.14472,
title = {Topological reconstruction theorems over uncountable algebraically closed fields},
author = {Benjamin Castle and Ronan O'Gorman},
journal= {arXiv preprint arXiv:2607.14472},
year = {2026}
}
Comments
60 pages