2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54490Efforts have been made recently to reformulate traditional Kaluza-Klein theory by using a generalized definition of a higher-dimensional extended space-time. Both electromagnetism and gravity have been studied in this context. We review some of the models which have been proposed, with a special effort to keep the mathematical formalism to a very minimum.20 pages of LaTeXHigh Energy Physics - Theorytext