Almost homogeneous varieties of Albanese codimension one
Algebraic Geometry
2020-03-20 v1
Abstract
We classify almost homogeneous normal varieties of Albanese codimension , defined over an arbitrary field. We prove that such a variety has a unique normal equivariant completion. Over a perfect field, the group scheme of automorphisms of this completion is smooth, except in one case in characteristic , and we determine its (reduced) neutral component.
Keywords
Cite
@article{arxiv.2003.08825,
title = {Almost homogeneous varieties of Albanese codimension one},
author = {Bruno Laurent},
journal= {arXiv preprint arXiv:2003.08825},
year = {2020}
}
Comments
21 pages. Comments are welcome