  Dynamics and thermodynamics of the model with local anharmonism in the case
of absence of the electron (Hubbard) correlation is investigated in the present
work. The correlation functions, mean values of pseudospin and particle number
as well as the thermodynamical potential are calculated. The calculation is
performed by diagrammatic method in the mean field approximation.
Single--particle Green functions are taken in the Hubbard--I approximation.
