2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36721Fluctuations 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 to generate a deflationary phase is computed from the COBE data.Latex file 7 KbGeneral Relativity and Quantum Cosmologytext