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Bibliographic Details
Main Authors: Gehrmann, Lennart, Guitart, Xavier, Masdeu, Marc
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2511.21171
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author Gehrmann, Lennart
Guitart, Xavier
Masdeu, Marc
author_facet Gehrmann, Lennart
Guitart, Xavier
Masdeu, Marc
contents We develop the tools required to effectively evaluate the Bianchi rigid meromorphic cocycles introduced by Darmon-Gehrmann-Lipnowski at big ATR points, and use them to obtain the first numerical verification of the conjectured algebraicity of these special values. Moreover, our computations suggest that these special values exhibit behaviour analogous to that of the special values of Borcherds products on Hilbert modular surfaces at big CM points.
format Preprint
id arxiv_https___arxiv_org_abs_2511_21171
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Evaluation of Bianchi Rigid Meromorphic Cocycles at Big ATR Points
Gehrmann, Lennart
Guitart, Xavier
Masdeu, Marc
Number Theory
11G18, 11G15
We develop the tools required to effectively evaluate the Bianchi rigid meromorphic cocycles introduced by Darmon-Gehrmann-Lipnowski at big ATR points, and use them to obtain the first numerical verification of the conjectured algebraicity of these special values. Moreover, our computations suggest that these special values exhibit behaviour analogous to that of the special values of Borcherds products on Hilbert modular surfaces at big CM points.
title Evaluation of Bianchi Rigid Meromorphic Cocycles at Big ATR Points
topic Number Theory
11G18, 11G15
url https://arxiv.org/abs/2511.21171