Contribution of Leningrad scientists to the development of control systems sensitivity theory

The sensitivity theory combines the principles and methods for exploring the influence of parameters variation on properties of control systems. The sensitivity theory was formed at the end 1950s – the beginning of 1960s as an independent scientific field. Rozenwasser E.N. and Yusupov R. M. made a significant contribution to its formation. The paper describes general aspects of the historical development of sensitivity theory, the authors’ contribution to its formation within the control theory and the general theory of dynamic systems, and scientific and organizational activity which was carried out in the country with participation of authors on promotion of the sensitivity theory.