Loop group schemes and Abhyankar’s lemma

We define the notion of loop reductive group schemes defined over the localization of a regular henselian ring $A$ at a strict normal crossing divisor $D$. We provide a criterion for the existence of parabolic subgroups of a given type.

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Bibliographic Details
Main Author: Gille, Philippe
Format: Article
Language:English
Published: Académie des sciences 2024-03-01
Series:Comptes Rendus. Mathématique
Subjects:
Online Access:https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.545/
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