2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/136357We study the flux homomorphism for closed forms of arbitrary degree, with special emphasis on volume forms and on symplectic forms. The volume flux group is an invariant of the underlying manifold, whose non-vanishing implies that the manifold resembles one with a circle action with homologically essential orbits.improved presentation, now 20 pagesAlgebraic TopologyDifferential GeometryGeometric TopologySymplectic Geometry57R17; 57R50, 57S05text