Vs. Sergeyev, ASYMPTOTIC STABILITY AND ESTIMATE OF THE REGION OF ATTRACTION IN CERTAIN SYSTEMS WITH AFTEREFFECT, Journal of applied mathematics and mechanics, 60(5), 1996, pp. 737-743
The problem of stability in the first approximation is solved for syst
ems with aftereffect by integrodifferential equations of the Volterra
type, using ideas and methods developed by Lyapunov [1] in the theory
of the stability of differential equations and later developed further
in the context of the theory of non-linear oscillations [2, 3]. (C) 1
997 Elsevier Science Ltd.