2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50341We consider the gauge invariance of the standard Yang-Mills model in the framework of the causal approach of Epstein-Glaser and Scharf and determine the generic form of the anomalies. The method used is based Epstein-Glaser approach to renormalization theory. In the case of quantum electrodynamics we obtain quite easily the absence of anomalies in all orders.29 pages, LATEX 2e, essentially rewritten paperHigh Energy Physics - Theorytext