2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92203The present paper is the continuity of the previous papers "Non-linear field theory" I and II. Here on the basis of the electromagnetic representation of Dirac's electron theory we consider the geometrical distribution of the electromagnetic fields of the electron-positron. This gives the posibility to obtain the explanation and solution of many fundamental problems of the QED.20 pagesQuantum Physicstext