2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/34695The dimensional structure of space-time is investigated according to physical and mathematical methods. We show that ther are various empirical and theoretical restrictions on the number of independent dimensions of space-time, consequently there is no physical and mathematical evidence for a space-time with four independent dimensions.24 pagesGeneral Relativity and Quantum Cosmologytext