Process density functions in the problem of the identification of a barrier in the functioning of a certain inventory storage and issue system

The subject matter of the investigation is a barrier to the functioning of a certain inventory system in the case where the storage input is a non-aggregated dynamic-parameter process. The authors derive a system of differential equations satisfied by probability distribution density functions for the intermediate states of subsystem L. The system of equations expresses relations between the densities and the parameters of the functioning of the transport subsystem and the parameters of the products supply process.