2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/3982The massive neutrinos gravitational infall and their inprints left on the CMB temperature and matter density fluctuations power spectra are analysed taking into account the massive neutrino properties: the mass degeneracy, the phase space mixing, the lepton asymmetry.Astrophysicstext