2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53737A general procedure for deriving the path integral representation of a transition amplitude on the gauge orbit space having a non-trivial topology is proposed. The path integral formula appears to be modified by including trajectories reflected from the physical configuration space boundary into the sum over paths. A solution of the Gribov problem of gauge fixing ambiguities is given in the framework of the path integral modified. Email contact: shabanov@amoco.saclay.cea.frSaclay-T93/129 Email: shabanov@amoco.saclay.cea.frHigh Energy Physics - Theorytext