ABSTRACT
Formulation of the problem in the linear theory of reactions (Section 4.3) can not always be satisfactory. Indeed, this theory assumes that the selected subsystem is in equilibrium with the thermostat only in the distant past. As for its future evolution, it is considered without the influence of the thermostat taken into account. When t → – ∞ perturbation 1tH takes place and the state of the subsystem evolves according to the Hamiltonian of the subsystem H (q, p) and the operator 1tH , and the thermostat is eliminated from further consideration.
