Modeling Group Actions on Stacks (Especially the Lubin-Tate Action)

Fuente: arXiv
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Main Author: Ray, Rin
Format: Preprint
Published: 2025
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author Ray, Rin
author_facet Ray, Rin
contents Suppose we are given a profinite group $G$ acting on a formal moduli stack $\mathcal{M}$, and we want to understand the group action, and compute cohomology related to this group action. How can we do it? This prolegomenon surveys two methods of pinning down such an action: geometric modeling and the two tower method. We highlight their use on a specific action - the automorphisms of a formal group acting on its deformation space, called the Lubin-Tate action.
format Preprint
id arxiv_https___arxiv_org_abs_2507_00309
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Modeling Group Actions on Stacks (Especially the Lubin-Tate Action)
Ray, Rin
Algebraic Geometry
Algebraic Topology
Suppose we are given a profinite group $G$ acting on a formal moduli stack $\mathcal{M}$, and we want to understand the group action, and compute cohomology related to this group action. How can we do it? This prolegomenon surveys two methods of pinning down such an action: geometric modeling and the two tower method. We highlight their use on a specific action - the automorphisms of a formal group acting on its deformation space, called the Lubin-Tate action.
title Modeling Group Actions on Stacks (Especially the Lubin-Tate Action)
topic Algebraic Geometry
Algebraic Topology
url https://arxiv.org/abs/2507.00309