2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6337This paper has been withdrawn by the author, due an error in Eq.(4.4), wherein a term of cosmological constant added into a theory of gravitation by Ref.[8], in which such the term is truly forbidden.This paper has been withdrawnAstrophysicsHigh Energy Physics - PhenomenologyAcceleration parameter of the Universe expansion and cosmological equation of statetext