$\mathbb{A}^2$ -Fibrations between affine spaces are trivial $\mathbb{A}^2$-bundles
Algebraic Geometry
2017-04-17 v1
Abstract
We give a criterion for a flat fibration with affine plane fibers over a smooth scheme defined over a field of characteristic zero to be a Zariski locally trivial -bundle. An application is a positive answer to a version of the Dolgachev-Weisfeiler Conjecture for such fibrations: a flat fibration with all fibers isomorphic to is the trivial -bundle.
Cite
@article{arxiv.1704.04440,
title = {$\mathbb{A}^2$ -Fibrations between affine spaces are trivial $\mathbb{A}^2$-bundles},
author = {Adrien Dubouloz},
journal= {arXiv preprint arXiv:1704.04440},
year = {2017}
}