Description of the global evolution of the universe based on generalized solutions of the cosmological dynamic equations

The various stages of the universe evolution are considered for the case of Einstein gravity based on exact solutions of the equations of cosmological dynamics for one Hubble parameter in various regimes with a scalar field and different matter fields. It is shown that the obtained solutions correspond to the correct change of the stages of the universe evolution. It is also shown that the proposed model corresponds to observational constraints on the values of the parameters of cosmological perturbations. The physical interpretation of the scalar field is also discussed in the context of its fundamental and effective treatment.