2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/82933We show how to obtain a complete set of electromagnetic corrections to a given nonperturbative model of strong interactions based on integral equations. The gauge invariance of these corrections is a consequence of their completeness.Contribution to Proceedings, Workshop on Nonperturbative Methods in Quantum Field Theory, Adelaide, Australia, 2-13 February 1998, to be published by World Scientific. 6 pages, revtex, epsf, 2 postscript figuresNuclear TheoryHigh Energy Physics - PhenomenologyHigh Energy Physics - Theorytext