ABSTRACT
The potential function εfg refers to a pair of molecules considered at the sites f and g. At the sites ξ there are neighbouring molecules that interact (simultaneously or separately depending on the distance) with molecules at the sites of f and g, but do not collide with them in the considered time range. As above, as the density of molecules increases, the role of Vlasov’s contributions increases. The system of equations (19.3) and (19.4) is closed with the aid of superposition or QCA at the level of paired functions and describes the dynamics of the non-uniform system.
