Deformation theory for prismatic $G$-displays

Fuente: arXiv
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Main Author: Ito, Kazuhiro
Format: Preprint
Published: 2023
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author Ito, Kazuhiro
author_facet Ito, Kazuhiro
contents For a smooth affine group scheme $G$ over the ring of $p$-adic integers and a cocharacter $μ$ of $G$, we develop the deformation theory for $G$-$μ$-displays over the prismatic site of Bhatt-Scholze, and discuss how our deformation theory can be interpreted in terms of prismatic $F$-gauges introduced by Drinfeld and Bhatt-Lurie. As an application, we prove the local representability and the formal smoothness of integral local Shimura varieties with hyperspecial level structure. We also revisit and extend some classification results of $p$-divisible groups.
format Preprint
id arxiv_https___arxiv_org_abs_2306_05361
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Deformation theory for prismatic $G$-displays
Ito, Kazuhiro
Number Theory
Algebraic Geometry
Primary 14F30, Secondary 14G45, 11G18, 14L05
For a smooth affine group scheme $G$ over the ring of $p$-adic integers and a cocharacter $μ$ of $G$, we develop the deformation theory for $G$-$μ$-displays over the prismatic site of Bhatt-Scholze, and discuss how our deformation theory can be interpreted in terms of prismatic $F$-gauges introduced by Drinfeld and Bhatt-Lurie. As an application, we prove the local representability and the formal smoothness of integral local Shimura varieties with hyperspecial level structure. We also revisit and extend some classification results of $p$-divisible groups.
title Deformation theory for prismatic $G$-displays
topic Number Theory
Algebraic Geometry
Primary 14F30, Secondary 14G45, 11G18, 14L05
url https://arxiv.org/abs/2306.05361