An obstruction to lifting to characteristic $0$
Algebraic Geometry
2021-06-17 v1 Number Theory
Abstract
We introduce a new obstruction to lifting smooth proper varieties in characteristic to characteristic . It is based on Grothendieck's specialization homomorphism and the resulting discrete finiteness properties of \'etale fundamental groups.
Keywords
Cite
@article{arxiv.2106.08381,
title = {An obstruction to lifting to characteristic $0$},
author = {Hélène Esnault and Vasudevan Srinivas and Jakob Stix},
journal= {arXiv preprint arXiv:2106.08381},
year = {2021}
}
Comments
18 pages