مشخصات پژوهش

The aim of this paper is to study the stability of the solutions of some uncertain delay (integro) differential equations under different conditions. In this regard, applying the Lyapunov direct method and fixed point technique, some sufficient conditions will be presented for the stability of a linear scalar uncertain delay differential equation. In some other cases that the conditions make it difficult to define a Lyapunov function, the stability problem will be studied only by fixed point method.