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Algébricité et lissité des champs de points fixes
- Publication Year :
- 2022
- Publisher :
- arXiv, 2022.
-
Abstract
- We study algebraicity and smoothness of fixed point stacks for flat group schemes which have a finite composition series whose factors are either reductive or proper, flat, finitely presented, acting on algebraic stacks with affine, finitely presented diagonal. For this, we extend some theorems of [SGA3.2] on functors of homomorphisms Hom(G, H) and functors of reductive subgroups Sub(H) for an affine, possibly non-flat group scheme H.<br />Comment: Added ''main ideas of the proofs'' in the introduction and corrected typos
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....cd279a906fef069e4dcbf5c624e7cc11
- Full Text :
- https://doi.org/10.48550/arxiv.2205.11114