Dd. Bainov et Im. Stamova, 2ND METHOD OF LYAPUNOV AND COMPARISON PRINCIPLE FOR IMPULSIVE DIFFERENTIAL-DIFFERENCE EQUATIONS, Journal of the Australian Mathematical Society. Series B. Applied mathematics, 38, 1997, pp. 489-505
In the present paper questions related to stability and boundedness wi
th respect to manifolds of solutions of impulsive differential-differe
nce equations are considered. The investigations are carried out by me
ans of piecewise-continuous functions which are analogues of the class
ical Lyapunov's functions. By means of a vectorial comparison equation
and differential inequalities for piecewise-continuous functions, the
orems are proved on stability and boundedness with respect to manifold
s of solutions of impulsive differential-difference equations with imp
ulse effect at fixed moments.