Siegel modular forms of level (4,8) and weight two

Fuente: arXiv
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Hauptverfasser: Freitag, Eberhard, Manni, Riccardo Salvati
Format: Preprint
Veröffentlicht: 2025
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author Freitag, Eberhard
Manni, Riccardo Salvati
author_facet Freitag, Eberhard
Manni, Riccardo Salvati
contents We consider the space of Siegel modular forms of genus $g$ of weight two relative to the main congruence subgroup of level 2 and to Igusa's group $Γ_g(4, 8)$ and $Γ_g(2,4)$.One of the main results of this paper is that in the case $g\ge 8$ the space $[Γ_g[4,8],2]$ is generated by the products of 4 theta nullwerte. Thus this note can be considered as a completion of the example at the end of [Fr].
format Preprint
id arxiv_https___arxiv_org_abs_2504_00653
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Siegel modular forms of level (4,8) and weight two
Freitag, Eberhard
Manni, Riccardo Salvati
Number Theory
Algebraic Geometry
We consider the space of Siegel modular forms of genus $g$ of weight two relative to the main congruence subgroup of level 2 and to Igusa's group $Γ_g(4, 8)$ and $Γ_g(2,4)$.One of the main results of this paper is that in the case $g\ge 8$ the space $[Γ_g[4,8],2]$ is generated by the products of 4 theta nullwerte. Thus this note can be considered as a completion of the example at the end of [Fr].
title Siegel modular forms of level (4,8) and weight two
topic Number Theory
Algebraic Geometry
url https://arxiv.org/abs/2504.00653