2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/194851If our universe is asymptotic to a de Sitter space, it should be closed with curvature in $O(Λ)$ in view of dS special relativity. Conversely, its evolution can fix on Beltrami systems of inertia in the dS-space without Einstein's `argument in a circle'. Gravity should be local dS-invariant based on localization of the principle of inertia.13 pagesHigh Energy Physics - TheoryOn Principle of Inertia in Closed Universetext