Modular Heights of Unitary Shimura Varieties

Fuente: arXiv
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Main Author: Guo, Ziqi
Format: Preprint
Published: 2025
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author Guo, Ziqi
author_facet Guo, Ziqi
contents The goal of this paper is to prove a formula expressing the modular height of a unitary Shimura variety over a CM number field in terms of the logarithm derivative of the Hecke L-function associated with the CM extension. In a more specific term, we will introduce a global canonical integral model of such a unitary Shimura variety, and compute the arithmetic top self-intersection number of a canonical arithmetic line bundle with Hermitian metric on such integral model. At the same time, we also delve into a thorough investigation of the arithmetic generating series of divisors on unitary Shimura varieties. Therefore, we will also obtain the so-called ``arithmetic Siegel-Weil formula'' in our setting.
format Preprint
id arxiv_https___arxiv_org_abs_2509_24363
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Modular Heights of Unitary Shimura Varieties
Guo, Ziqi
Number Theory
11G40 11G50 14G10 14G35 14G40
The goal of this paper is to prove a formula expressing the modular height of a unitary Shimura variety over a CM number field in terms of the logarithm derivative of the Hecke L-function associated with the CM extension. In a more specific term, we will introduce a global canonical integral model of such a unitary Shimura variety, and compute the arithmetic top self-intersection number of a canonical arithmetic line bundle with Hermitian metric on such integral model. At the same time, we also delve into a thorough investigation of the arithmetic generating series of divisors on unitary Shimura varieties. Therefore, we will also obtain the so-called ``arithmetic Siegel-Weil formula'' in our setting.
title Modular Heights of Unitary Shimura Varieties
topic Number Theory
11G40 11G50 14G10 14G35 14G40
url https://arxiv.org/abs/2509.24363