The relatively perfect Greenberg transform and cycle class maps

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Hauptverfasser: Bertapelle, Alessandra, Suzuki, Takashi
Format: Preprint
Veröffentlicht: 2020
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author Bertapelle, Alessandra
Suzuki, Takashi
author_facet Bertapelle, Alessandra
Suzuki, Takashi
contents Given a scheme over a complete discrete valuation ring of mixed characteristic with perfect residue field, the Greenberg transform produces a new scheme over the residue field thicker than the special fiber. In this paper, we will generalize this transform to the case of imperfect residue field. We will then construct a certain kind of cycle class map defined on this generalized Greenberg transform applied to the Néron model of a semi-abelian variety, which takes values in the relatively perfect nearby cycle functor defined by Kato and the second author.
format Preprint
id arxiv_https___arxiv_org_abs_2009_05084
institution arXiv
publishDate 2020
record_format arxiv
spellingShingle The relatively perfect Greenberg transform and cycle class maps
Bertapelle, Alessandra
Suzuki, Takashi
Number Theory
Algebraic Geometry
Primary: 11G25. Secondary: 14G20, 14F30
Given a scheme over a complete discrete valuation ring of mixed characteristic with perfect residue field, the Greenberg transform produces a new scheme over the residue field thicker than the special fiber. In this paper, we will generalize this transform to the case of imperfect residue field. We will then construct a certain kind of cycle class map defined on this generalized Greenberg transform applied to the Néron model of a semi-abelian variety, which takes values in the relatively perfect nearby cycle functor defined by Kato and the second author.
title The relatively perfect Greenberg transform and cycle class maps
topic Number Theory
Algebraic Geometry
Primary: 11G25. Secondary: 14G20, 14F30
url https://arxiv.org/abs/2009.05084