2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/57381We realize the hamiltonian action of the one spatial Poincare group G, analogous to the projective unitary representation, on a coadjoint orbit of G whic we interpret as a symplectic space-time where the time is associated to a physical quantity of cohomological origine (the force f). This time is the time delay necessary tor the system under the force f to have momentum p.latexMathematical PhysicsSymplectic Geometry22E70text