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Main Author: Yuan, Yijun
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2511.17029
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author Yuan, Yijun
author_facet Yuan, Yijun
contents In this article, we study the descent of $(φ,τ)$-modules over perfectoid period rings in characteristic $p$ via Berger and Rozensztajn's theory of super-Hölder vectors. This is a generalization of their work on $(φ,Γ)$-modules. As an application, we answer a question of Caruso regarding the connection between $(φ,τ)$-modules and $(φ,Γ)$-modules without involving Galois representations as intermediaries.
format Preprint
id arxiv_https___arxiv_org_abs_2511_17029
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Descent of $(φ,τ)$-modules in characteristic $p$
Yuan, Yijun
Number Theory
11S15, 13J05, 22E35
In this article, we study the descent of $(φ,τ)$-modules over perfectoid period rings in characteristic $p$ via Berger and Rozensztajn's theory of super-Hölder vectors. This is a generalization of their work on $(φ,Γ)$-modules. As an application, we answer a question of Caruso regarding the connection between $(φ,τ)$-modules and $(φ,Γ)$-modules without involving Galois representations as intermediaries.
title Descent of $(φ,τ)$-modules in characteristic $p$
topic Number Theory
11S15, 13J05, 22E35
url https://arxiv.org/abs/2511.17029