Siegel operators for holomorphic differential forms

Fuente: arXiv
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Autore principale: Ma, Shouhei
Natura: Preprint
Pubblicazione: 2024
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author Ma, Shouhei
author_facet Ma, Shouhei
contents We give a geometric interpretation of the Siegel operators for holomorphic differential forms on Siegel modular varieties. This involves extension of the differential forms over a toroidal compactification, and we show that the Siegel operator essentially describes the restriction and descent to the boundary Kuga variety via holomorphic Leray filtration. As a consequence, we obtain equivalence of various notions of "vanishing at boundary'' for holomorphic forms. We also study the case of orthogonal modular varieties.
format Preprint
id arxiv_https___arxiv_org_abs_2409_04315
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Siegel operators for holomorphic differential forms
Ma, Shouhei
Algebraic Geometry
Number Theory
11F46, 11F55, 11F75
We give a geometric interpretation of the Siegel operators for holomorphic differential forms on Siegel modular varieties. This involves extension of the differential forms over a toroidal compactification, and we show that the Siegel operator essentially describes the restriction and descent to the boundary Kuga variety via holomorphic Leray filtration. As a consequence, we obtain equivalence of various notions of "vanishing at boundary'' for holomorphic forms. We also study the case of orthogonal modular varieties.
title Siegel operators for holomorphic differential forms
topic Algebraic Geometry
Number Theory
11F46, 11F55, 11F75
url https://arxiv.org/abs/2409.04315