  The basic purpose of this work was to suggest universal quantitative
description of ergodic system intermediate bifurcation and obligatory
conditions of this transition. Conditions for existence of phase state and
first order phase transition were introduced in terms of energy balance for
system volume unit. Extended Fokker - Plank equation with time dependent
diffusion factor was formulated. It turned out that for ergodic system with
fixed boundary quantized energy spectrum of phase stable states exists.
Obtained results may be applied for prediction of ergodic system behavior. If
isolation condition is satisfied, phase spectrum quantization allows selecting
proper control parameters for system stabilization. Information about current
system coarsened energy allows predicting of future stochastic system behavior
on the basis of extended Fokker - Plank model.
