Duality for condensed cohomology of the Weil group of a $p$-adic field

We use the theory of Condensed Mathematics to build a condensed cohomology theory for the Weil group of a p -adic field. The cohomology groups are proved to be locally compact abelian groups of finite ranks in some special cases. This allows us to enlarge the local Tate duality to a more general category of non-necessarily discrete coefficients, where it takes the form of a Pontryagin duality between locally compact abelian groups.

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Publication Details

Journal
Documenta Mathematica
Published
2024-11-26
DOI
https://doi.org/10.4171/dm/977
Primary Topic
Algebraic Geometry and Number Theory
Type
article
Field-Weighted Citation Impact
0.00
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article

Duality for condensed cohomology of the Weil group of a $p$-adic field

Marco Artusa
Documenta Mathematica
Algebraic Geometry and Number Theory
article

Duality for condensed cohomology of the Weil group of a $p$-adic field

Marco Artusa
article en

Abstract

We use the theory of Condensed Mathematics to build a condensed cohomology theory for the Weil group of a p -adic field. The cohomology groups are proved to be locally compact abelian groups of finite ranks in some special cases. This allows us to enlarge the local Tate duality to a more general category of non-necessarily discrete coefficients, where it takes the form of a Pontryagin duality between locally compact abelian groups.

Documenta MathematicaVol. 29(6)
Université de Bordeaux (FR)
Openalex Percentile: Top 67%
Algebraic Geometry and Number Theory
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Duality for condensed cohomology of the Weil group of a $p$-adic field — Marco Artusa · Documenta Mathematica (2024) | TGRS Research Map | TGRS