Year: 2026
Type: preprint
Abstract: We prove the hyperplane conjecture, proposed by Hosono, Lian, and Yau in arXiv:alg-geom/9511001, for Batyrev's mirror pairs of Calabi--Yau hypersurfaces and its orbifold generalization, without assuming that the lattice points in the defining reflexive polytope generate the ambient lattice. We then identify the pushforward of the extended hypersurface \(I\)-function with a generating series of normalized compact periods of the mirror, providing a period interpretation of the hypergeometric series governing ambient genus-zero orbifold Gromov--Witten theory. As an application of our method, we also identify the residue of the Gauss--Manin connection and the cup product morphism on the \(A\)-side.
Source: arXiv (Cornell University)
Author: Lee, Tsung-Ju
Institution: National Cheng Kung University
Language: English
Subfield: Geometry and Topology
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7223011884