Loop group schemes and Abhyankar's lemma
arXiv:2301.05470
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.
arXiv commentTo appear in Comptes Rendus de l'Acad{é}mie des Sciences Math{é}matiques