2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/60139We express total set of rational Gromov-Witten invariants of projective spaces via periods of variations of semi-infinite Hodge structure associated with their mirror partners.17 pages, LaTeX; references added in sections 1 and 4, remark 4.11 extended, few other local improvementsAlgebraic GeometryCommutative AlgebraQuantum Algebra14XX;81Q30;32GXX;13DXXtext