On the stability of the plane-wave hartree-fock state

Stability condition of the Hartree-Fock states against four-body correlations

The stability of Hartree-Fock solutions and of collective motion

Stability of the thermal Hartree-Fock approximation

Stability of the thermal Hartree-Fock approximation

Stability of the Hartree-Fock Approximation in Nuclear Matter.

Gas-liquid instability in the many-fermion system and the breakdown of perturbation theory based on the plane-wave Hartree-Fock hamiltonian