A Chain of Equations for Two-Time Irreducible Green Functions in Molecular Hydrodynamics

By an example of a quantum system of particles with a pairwise interaction, a problem of constructing correlation functions is considered on the basis of a chain of equations for two-time irreducible Green functions. Linearized equations of molecular hydrodynamics are taken as the first link of the chain. The advantages of the adopted method of calculations are discussed as compared with the conventional methods based on the Boltzmann-type kinetic equations.