2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93205An extension of the classical action principle obtained in the framework of the gauge transformations, is used to describe the motion of a particle. This extension assigns many, but not all, paths to a particle. Properties of the particle paths are shown to impart wave like behaviour to a particle in motion and to imply various other assumptions and conjectures attributed to the formalism of Quantum Mechanics. The Klein-Gordon and other similar equations are derived by incorporating these properties in the path-integral formalism.19 pages, LaTeX; A new gauge theoretical description of Quantum Mechanics, based on the presentation in conference on Quantum Theory at York University, Toronto, August 1995Quantum Physicstext