Hodge modules and Kähler morphisms

Fuente: arXiv
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Main Author: Villadsen, Mads Bach
Format: Preprint
Published: 2024
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author Villadsen, Mads Bach
author_facet Villadsen, Mads Bach
contents We prove the decomposition theorem for Hodge modules with integral structure along proper Kähler morphisms, partially generalizing M. Saito's theorem for projective morphisms. Our proof relies on compactifications of period maps of generically defined variations of Hodge structure, as well as the theorems of Cattani-Kaplan-Schmid on \(L^2\)-cohomology of variations of Hodge structure for the hard Lefschetz theorem.
format Preprint
id arxiv_https___arxiv_org_abs_2401_09544
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Hodge modules and Kähler morphisms
Villadsen, Mads Bach
Algebraic Geometry
Complex Variables
14D07 (Primary) 32D20, 32C38, 14F10, 14F43 (Secondary)
We prove the decomposition theorem for Hodge modules with integral structure along proper Kähler morphisms, partially generalizing M. Saito's theorem for projective morphisms. Our proof relies on compactifications of period maps of generically defined variations of Hodge structure, as well as the theorems of Cattani-Kaplan-Schmid on \(L^2\)-cohomology of variations of Hodge structure for the hard Lefschetz theorem.
title Hodge modules and Kähler morphisms
topic Algebraic Geometry
Complex Variables
14D07 (Primary) 32D20, 32C38, 14F10, 14F43 (Secondary)
url https://arxiv.org/abs/2401.09544