2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56552De Rham cohomology, $d_V$- and $d_H$-cohomology of the differential algebra of locally pull-back exterior forms on the infinite-order jet manifold of a smooth fibre bundle are calculated.10 pagesMathematical PhysicsAlgebraic Topology14F05; 46M20; 55N30; 57R19; 58B100text