Intersections of Hecke correspondences on modular curves

Fuente: arXiv
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Hauptverfasser: He, Qiao, Zhu, Baiqing
Format: Preprint
Veröffentlicht: 2025
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author He, Qiao
Zhu, Baiqing
author_facet He, Qiao
Zhu, Baiqing
contents We compute the arithmetic intersections of Hecke correspondences on the product of integral model of modular curve $\mathcal{X}_0(N)$ and relate it to the derivatives of certain Siegel Eisenstein series when $N$ is odd and squarefree. We prove this by establishing a precise identity between the arithmetic intersection numbers on the Rapoport--Zink space associated to $\mathcal{X}_0(N)^{2}$ and the derivatives of local representation densities of quadratic forms.
format Preprint
id arxiv_https___arxiv_org_abs_2502_19600
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Intersections of Hecke correspondences on modular curves
He, Qiao
Zhu, Baiqing
Number Theory
Algebraic Geometry
We compute the arithmetic intersections of Hecke correspondences on the product of integral model of modular curve $\mathcal{X}_0(N)$ and relate it to the derivatives of certain Siegel Eisenstein series when $N$ is odd and squarefree. We prove this by establishing a precise identity between the arithmetic intersection numbers on the Rapoport--Zink space associated to $\mathcal{X}_0(N)^{2}$ and the derivatives of local representation densities of quadratic forms.
title Intersections of Hecke correspondences on modular curves
topic Number Theory
Algebraic Geometry
url https://arxiv.org/abs/2502.19600