Twierdzenie wzajemne i funkcja Greena dla układów dyskretnych z losowym wymuszeniem

The paper is dealing with the derivation and proofs of reciprocal Betti type theorems for random problems of stationary type, within the scope of the first- and second-order moments. On the basis of these relations, the notion of Green function for autocorrelation with respect to the system response, for the random excitation problem have been introduced. In the paper the author discusses a generalization for the resultsof the work [4b].