2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49238The generalized covariant derivative, that uses both scalar and vector bosons, is defined. It is shown how a grand unified theory of the Standard Model can be constructed using a generalized Yang-Mills theory.8 pages, no figures. To be published in the proceedings of the International Workshop "Lorentz Group, CPT and Neutrinos", (Zacatecas, Mexico, June 23-26, 1999)High Energy Physics - PhenomenologyHigh Energy Physics - Theorytext