Period integrals (Givental's 𝐼-function) of Calabi–Yau hypersurface in 𝐶𝑃^𝑁−1 as generating functions of intersection numbers on the moduli space of quasimaps

Abstract

In this paper, we derive the generalized hypergeometric functions (period integrals) used in mirror computation of Calabi–Yau hypersurface in 𝐶𝑃^𝑁−1 as generating functions of intersection numbers on the moduli space of quasimaps from 𝐶𝑃¹ with 2 + 1 marked points to 𝐶𝑃^𝑁−1.