V.N. Klyachkin – Dr.Sc.(Eng.), Professor, Department «Applied Mathematics and Informatics»,  Ulyanovsk State Technical University

E-mail: v_kl@mail.ru

Yu.E. Kuvayskova – Ph.D.(Eng.), Associate Professor, Department «Applied Mathematics and Informatics», Ulyanovsk State Technical University

E-mail: u.kuvaiskova@mail.ru

D.A. Zhukov – Post-graduate Student, Department «Applied Mathematics and Informatics»,  Ulyanovsk State Technical University

E-mail: zh.dimka17@mail.ru