2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/95517We study symplectic surfaces in ruled symplectic 4-manifolds which are disjoint from a given symplectic section. As a consequence we see that, in any symplectic 4-manifold, two homologous symplectic surfaces which are sufficiently C^0 close must be Hamiltonian isotopic.Symplectic Geometrytext