ON THE THEORY OF THE ENERGY SPECTRUM OF SYSTEMS OF INTERACTING PARTICLES

THEORY OF ENERGY SPECTRA OF QUANTUM SYSTEMS OF MANY PARTICLES

SPECTRA OF SYSTEMS OF INTERACTING PARTICLES

AN APPLICATION OF THE PATH INTEGRALS METHOD IN THE GREEN'S FUNCTION THEORY OF THE SYSTEMS OF INTERACTING PARTICLES.

Approximate diagonalization of the energy operator of a system of interacting particles

MATHEMATICAL THEORY OF QUANTUM PARTICLES INTERACTING WITH A QUANTUM FIELD

Theory of Many-Particle Systems. I