TY JOUR TI Modification of the Galerkin method for solving the problem of parametric synthesis of ACS KW generalized Galerkin method KW nonlinear automatic control systems KW recurrence relations KW polynomial approximation JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Vataeva, E.. PY 2026 IS 2026 PB Astrakhan State Technical University