2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43886Recent progress in some selected areas of grand unification and physics beyond the standard model is reviewed. Topics include gauge coupling unification, SU(5), SO(10), symmetry breaking mechanisms, finite field theory: SU(3)^3, leptonic color: SU(3)^4, chiral color and quark-lepton nonuniversality: SU(3)^6.12 pages, no figure, talk at V-SILAFAE, Lima, Peru (July 2004)High Energy Physics - Phenomenologytext