Fokker action principles with self-action. II. Applications of the general theory to a single particle in uniform circular motion; modified maxwell-lorentz interaction; a model of the electron: Alfred Schild. Department of Physics, The University of Texas, Austin, Texas 78712

Abstract

We redefine Dirac's action for charge-monopole systems as a certain limit of Wu-Yang's action in a way which is similar to, but different from, the work of Brandt and Primack. The lagrangian theory thus obtained reproduces, in a simple and straightforward manner, all of the Maxwell-Lorentz equations without recourse to Dirac's veto. It also becomes clear that the action-at-a-distance formalism is especially suited for the description of such systems. An action, equations of motion and conserved linear and angular momenta are explicitly given, which do not depend on the string. The existence of a charge-monopole bound state is suggested.