In this work the generalization of Poincare-Kozlov theorems has been made. These theorems are concern to the weak convergence of distribution function for t→∞ . The generalization is that the distribution function may be represented as generalized function of the singular type, such as delta-function. It is proved, that the weak limit of the solution of Liouville equation exists and equals to constant.

Mathematical modelling in actual problems of science and technics