Dd. Bainov et al., ASYMPTOTIC EQUIVALENCE OF ABSTRACT IMPULSIVE DIFFERENTIAL-EQUATIONS, International journal of theoretical physics, 35(2), 1996, pp. 383-393
The notion of (h, k)-dichotomy is introduced, which is a generalizatio
n of the classical exponential dichotomy. By means of the Schauder-Tyc
honoff theorem an asymptotic equivalence is proved between a linear im
pulsive differential equation which is (h, k)-dichotomous and the corr
esponding perturbed nonlinear equation.