2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36728Fluctuations on de Sitter solution of Einstein-Cartan field equations are obtained in terms of the matter density primordial density fluctuations and spin-torsion density and matter density fluctuations obtained from COBE data. Einstein-de Sitter solution is shown to be unstable even in the absence of torsion.The spin-torsion density fluctuation is simply computed from the Einstein-Cartan equations and from COBE data.Latex fileGeneral Relativity and Quantum Cosmologytext