TY JOUR TI Numerical-analytical transformation method of analyzing nonlinear mathematical models with polynomial structure KW method of transformations KW nonlinear dynamic systems KW mathematical model of polynomial structure KW stability of system solution KW numerical and analytical methods JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Ivanov, S.E. AU Televnoy, A.D. PY 2022 IS PB Astrakhan State Technical University