2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93268An ordinary unambiguous integral representation for the finite propagator of a quantum system is found by starting of a privileged skeletonization of the functional action in phase space, provided by the complete solution of the Hamilton-Jacobi equation. This representation allows to regard the propagator as the sum of the contributions coming from paths where the momenta generated by the complete solution of the Hamilton-Jacobi equation are conserved -as it does happen on the classical trajectory-, but are not restricted to having the classical values associated with the boundary conditions for the original coordinates.8 pages (TeX manuscript)Quantum PhysicsGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theorytext