Generating Picard modular forms by means of invariant theory

Open Access
Authors
Publication date 2023
Journal Pure and Applied Mathematics Quarterly
Volume | Issue number 19 | 1
Pages (from-to) 95-147
Number of pages 53
Organisations
  • Faculty of Science (FNWI) - Korteweg-de Vries Institute for Mathematics (KdVI)
Abstract We use the description of the Picard modular surface for discriminant -3 as a moduli space of curves of genus 3 to generate all vector-valued Picard modular forms from bi-covariants for the action of GL2 on the space of pairs of binary forms of bi-degree (4, 1). The universal binary forms of degree 4 and 1 correspond to a meromorphic modular form of weight (4, -2)and a holomorphic Eisenstein series of weight (1, 1).
Document type Article
Note In Special Issue in honor of Don Zagier
Language English
Published at https://doi.org/10.48550/arXiv.2110.00849 https://doi.org/10.4310/PAMQ.2023.v19.n1.a6
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2110.00849 (Submitted manuscript)
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