2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/154156In this paper, we gave some explicit relations between absolute and relative Gromov-Witten invariants. We proved that a symplectic manifold is symplectic rationally connected if it contains a positive divisor symplectomorphic to $P^n$.Symplectic GeometryAlgebraic Geometry53D45;14E08text