Kinetics of a spatially in homogeneous Bose gas in the presence of a condensate

Kinetic stage of the evolution of spatially inhomogeneous Bose gas with the weak interaction in the presence of condensate is investigated. Kinetic equations for the distribution function of quasiparticles and particles of the condensate are derived. Expressions for densities and flux densties of physical quantities at the kinetic stage of the evolution are found in the weak interaction approximation.