2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53934We give close formulas for the counting functions of rational curves on complete intersection Calabi-Yau manifolds in terms of special solutions of generalized hypergeometric differential systems. For the one modulus cases we derive a differential equation for the Mirror map, which can be viewed as a generalization of the Schwarzian equation. We also derive a nonlinear seventh order differential equation which directly governs the instanton corrected Yukawa coupling.24 pages using harvmacHigh Energy Physics - Theorytext