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Main Author: Dummigan, Neil
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2602.20188
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author Dummigan, Neil
author_facet Dummigan, Neil
contents We prove that the 4-dimensional Galois representations associated with a certain Calabi-Yau threefold are reducible, with 2-dimensional composition factors coming from specific modular forms of weights 2 and 4, both level 14. This was essentially conjectured by Meyer and Verrill. It was revisited in its present form by Candelas, de la Ossa, Elmi and van Straten, whose computations of Euler factors in a whole pencil of Calabi-Yau threefolds highlighted this fibre as one of three overwhelmingly likely to be ``rank-2 attractors''.
format Preprint
id arxiv_https___arxiv_org_abs_2602_20188
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Modularity of a certain "rank-2 attractor" Calabi-Yau threefold
Dummigan, Neil
Number Theory
High Energy Physics - Theory
Algebraic Geometry
11G40, 11F80
We prove that the 4-dimensional Galois representations associated with a certain Calabi-Yau threefold are reducible, with 2-dimensional composition factors coming from specific modular forms of weights 2 and 4, both level 14. This was essentially conjectured by Meyer and Verrill. It was revisited in its present form by Candelas, de la Ossa, Elmi and van Straten, whose computations of Euler factors in a whole pencil of Calabi-Yau threefolds highlighted this fibre as one of three overwhelmingly likely to be ``rank-2 attractors''.
title Modularity of a certain "rank-2 attractor" Calabi-Yau threefold
topic Number Theory
High Energy Physics - Theory
Algebraic Geometry
11G40, 11F80
url https://arxiv.org/abs/2602.20188