Berthelot’s conjecture via homotopy theory

We use motivic methods to give a quick proof of Berthelot’s conjecture stating that the pushforward map in rigid cohomology of the structural sheaf along a smooth and proper map has a canonical structure of overconvergent F-isocrystal on the base.

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Publication Details

Journal
Duke Mathematical Journal
Published
2025-11-03
DOI
https://doi.org/10.1215/00127094-2025-0021
Primary Topic
Homotopy and Cohomology in Algebraic Topology
Type
article
Field-Weighted Citation Impact
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article

Berthelot’s conjecture via homotopy theory

Alberto Vezzani, Veronika Ertl
Duke Mathematical Journal
Homotopy and Cohomology in Algebraic Topology
article

Berthelot’s conjecture via homotopy theory

Alberto Vezzani, Veronika Ertl
article en

Abstract

We use motivic methods to give a quick proof of Berthelot’s conjecture stating that the pushforward map in rigid cohomology of the structural sheaf along a smooth and proper map has a canonical structure of overconvergent F-isocrystal on the base.

Duke Mathematical JournalVol. 174(18)
University of Milan (IT), Laboratoire de Mathématiques Blaise Pascal (FR), Université de Caen Normandie (FR)
Openalex Percentile: Top 61%
Homotopy and Cohomology in Algebraic Topology
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