A pro-étale-to-de Rham comparison theorem for curves

Fuente: arXiv
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Main Author: Gilles, Sally
Format: Preprint
Published: 2025
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author Gilles, Sally
author_facet Gilles, Sally
contents We state a conjecture relating de Rham cohomology of a smooth rigid analytic variety to its compactly supported pro-étale cohomology. We prove the conjecture in the cases where the variety is a Stein curve of dimension one or a Stein space of higher dimension with low Frobenius slopes. The proof uses computation of the Galois cohomology of the almost de Rham period ring BdR[log(t)].
format Preprint
id arxiv_https___arxiv_org_abs_2503_14041
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A pro-étale-to-de Rham comparison theorem for curves
Gilles, Sally
Algebraic Geometry
Number Theory
We state a conjecture relating de Rham cohomology of a smooth rigid analytic variety to its compactly supported pro-étale cohomology. We prove the conjecture in the cases where the variety is a Stein curve of dimension one or a Stein space of higher dimension with low Frobenius slopes. The proof uses computation of the Galois cohomology of the almost de Rham period ring BdR[log(t)].
title A pro-étale-to-de Rham comparison theorem for curves
topic Algebraic Geometry
Number Theory
url https://arxiv.org/abs/2503.14041