Sufficient conditions of interval absolute stability of nonlinear control systems described in
terms of systems of the ordinary differential equations with delay argument and also neutral …

By employing the direct Lyapunov method with original Lyapunov− Krasovsky functional one
has proved the sufficient stability conditions absolute in nonlinearity and time-delay, and …

The necessary and sufficient conditions of the absolute stability for the 2nd order controlled
systems in the class of nonstationary nonlinearities located under any $ t $ in the angle $[0 …

The sufficient conditions of absolute stability of nonlinear control systems of the neutral type
are obtained. The estimates of exponential damping of solutions are constructed. The results …

VI Skorodinskii, “Absolute stability and absolute instability of control systems with two nonlinear
nonstationary elements. I”, Avtomat. i Telemekh., 1981, no. 9, 21–29; Autom. Remote Control …

Consideration was given to a class of systems of nonlinear differential equations with
retarded argument. It was assumed that in the absence of delay the zero solutions of the …

IM Anan'evskii, VB Kolmanovskii, “Stability of some control systems with aftereffect”, Differ.
Uravn., 25:11 (1989), 1848–1852; Differ. Equ., 25:11 (1989), 1287–1290 Differentsial'nye …

For nonlinear nonstationary retarded functional differential systems the problem of stability
with respect to a part of the variables of a “partial” equilibrium position is considered. The …

The Lyapunov direct method with the Lyapunov− Krasovskiy functional is under
investigation. We proved sufficient criteria of stability, namely, absolute by nonlinearity and …

Necessary and sufficient conditions are obtained for the absolute stability of third-order
systems with a nonlinear nonstationary element. Attention is given to both nonoscillatory and …