Abstract. This paper shows that the solutions to the perturbed differential system
g(s, y(s), T y(s))ds + h(t, y(t))have asymptotic property and uniform Lipschitz stability. To show these properties, we impose conditions on the perturbed part
g(s, y(s), T y(s))ds, h(t, y(t)), and on the fundamental matrix of the unperturbed system y = f (t, y).