A Hypergeometric Version of the Modularity of Rigid Calabi-Yau Manifolds

Abstract

We examine instances of modularity of (rigid) Calabi-Yau manifolds whose periods are expressed in terms of hypergeometric functions. The $p$-th coefficients $a(p)$ of the corresponding modular form can be often read off, at least conjecturally, from the truncated partial sums of the underlying hypergeometric series modulo a power of $p$ and from Weil's general bounds $|a(p)|\le 2p^{(m-1)/2}$, where $m$ is the weight of the form. Furthermore, the critical $L$-values of the modular form are predicted to be $\mathbb{Q}$-proportional to the values of a related basis of solutions to the hypergeometric differential equation.

References in corpus (3)

• Supercongruences for rigid hypergeometric Calabi--Yau threefolds
• A modular supercongruence for ${}_6{F}_5$: an Apéry-like story
• Moments of elliptic integrals and critical $L$-values

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• Modularity experiments on $S_4$-symmetric double octics