A consistent treatment of the ground state correlations beyond the random
phase approximation including their influence on the pairing and phonon-phonon
coupling in nuclei is presented. A new general system of nonlinear equations
for the quasiparticle phonon model (QPM) is derived. It is shown that this
system contains as a particular case all equations derived for the QPM early.
New additional Pauli principle corrections resulting in the anharmonical shifts
of energies of the two-phonon configurations are found. A correspondence
between the generalized QPM equations and the nuclear field theory is
discussed.Comment: 22 pages, 3 postscript figures, added reference
