2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35587The compatibility between the general relativity and the mathematical property that the space-times are embedded manifolds are further examined. In particular we study the uniqueness of the signature of the embedding space for a given space-time. The interpretation of the twisting vector as a gauge potential is also implemented.13 pages, LatexGeneral Relativity and Quantum Cosmologytext