Loop group schemes and Abhyankar's lemma
- Resource Type
- Working Paper
- Authors
- Gille, Philippe
- Source
- Comptes Rendus de l'Acad{\'e}mie des Sciences - Series I - Mathematics, 2023
- Subject
- Mathematics - Algebraic Geometry
- Language
We define the notion of 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 for parabolic subgroups of a given type.
Comment: To appear in Comptes Rendus de l'Acad{\'e}mie des Sciences Math{\'e}matiques