Electronic Journal of Differential Equations,
Vol. 2010(2010), No. 152, pp. 1-16.

Title: Stability properties of differential systems
       under constantly acting perturbations

Authors: Giancarlo Cantarelli (Univ. di Parma, Italy)
         Giuseppe Zappala (Univ. di Parma, Italy)

Abstract: 
 In this article, we find stability criteria
 for perturbed differential systems, in terms of two measures.
 Our main tool is a  definition of total stability
 based on two classes of perturbations.
 	 
Submitted January 17, 2010. Published October 21, 2010.
Math Subject Classifications: 34D20, 34C25, 34A34.
Key Words: Stability; persistent disturbance; two measures; 
           Liapunov functions.