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arXiv · 2301.05470

Loop group schemes and Abhyankar's lemma

Philippe Gille
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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 $D$. We provide a criterion for the existence for parabolic subgroups of a given type.

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Philippe Gille. 2023-01-13. Loop group schemes and Abhyankar's lemma. https://arxiv.org/abs/2301.05470

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