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Main Authors: Johnson-Leung, Jennifer, Rupert, Nina
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2501.09109
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author Johnson-Leung, Jennifer
Rupert, Nina
author_facet Johnson-Leung, Jennifer
Rupert, Nina
contents Let $E/L$ be a real quadratic extension of number fields. We construct an explicit map from an irreducible cuspidal automorphic representation of $\mathrm{GL}(2,E)$ which contains a Hilbert modular form with $Γ_0$ level to an irreducible automorphic representation of $\mathrm{GSp}(4,L)$ which contains a Siegel paramodular form and exhibit local data which produces a paramodular invariant vector for the local theta lift at every finite place, except when the local extension has wild ramification.
format Preprint
id arxiv_https___arxiv_org_abs_2501_09109
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle An Explicit Theta Lift to Siegel Paramodular Forms
Johnson-Leung, Jennifer
Rupert, Nina
Number Theory
11F46
Let $E/L$ be a real quadratic extension of number fields. We construct an explicit map from an irreducible cuspidal automorphic representation of $\mathrm{GL}(2,E)$ which contains a Hilbert modular form with $Γ_0$ level to an irreducible automorphic representation of $\mathrm{GSp}(4,L)$ which contains a Siegel paramodular form and exhibit local data which produces a paramodular invariant vector for the local theta lift at every finite place, except when the local extension has wild ramification.
title An Explicit Theta Lift to Siegel Paramodular Forms
topic Number Theory
11F46
url https://arxiv.org/abs/2501.09109