Fixed points under pinning-preserving automorphisms of reductive group schemes - Archive ouverte HAL
Pré-Publication, Document De Travail (Preprint/Prepublication) Année : 2023

Fixed points under pinning-preserving automorphisms of reductive group schemes

Résumé

In this paper we determine the scheme-theoretic fixed points of pinned reductive group schemes acted upon by a group of pinning-preserving automorphisms. The results are used in a companion paper to establish a ramified geometric Satake equivalence with integral or modular coefficients.
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Dates et versions

hal-03919246 , version 1 (02-01-2023)

Identifiants

Citer

Pramod N. Achar, Timo Richarz, Simon Riche, João Lourenço. Fixed points under pinning-preserving automorphisms of reductive group schemes. 2023. ⟨hal-03919246⟩
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