2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186871We show that a number of problems of modern cosmology may be addressed and solved in the framework of multidimensional gravity with high-order curvature invariants, without invoking other fields. As applications of this approach, we mention primordial inflation and particle production after it; description of the modern accelerated stage of the Universe with stable compact extra dimensions; construction of asymmetric thick brane-world models.6 pages, 3 figuresGeneral Relativity and Quantum Cosmologytext