Stability of delay differential equations in the sense of Ulam on unbounded intervals

Abstract

In this paper, we consider the stability problem of delay differential equations in the sense of Hyers-Ulam-Rassias. Recently this problem has been solved for bounded intervals, our result extends and improve the literature by obtaining stability in unbounded intervals. An illustrative example is also given to compare these results and visualize the improvement. © 2019 Balikesir University. All rights reserved.