Loop group schemes and Abhyankar's lemma
Algebraic Geometry
2023-08-02 v2
Abstract
We define the notion of reductive group schemes defined over the localization of a regular henselian ring A at a strict normal crossing divisor . We provide a criterion for the existence for parabolic subgroups of a given type.
Keywords
Cite
@article{arxiv.2301.05470,
title = {Loop group schemes and Abhyankar's lemma},
author = {Philippe Gille},
journal= {arXiv preprint arXiv:2301.05470},
year = {2023}
}
Comments
To appear in Comptes Rendus de l'Acad{\'e}mie des Sciences Math{\'e}matiques