In this paper we use the contraction mapping principle to obtain asymptotic stability results of
a nonlinear neutral integrodifferential equation with variable delay. An asymptotic stability …

In this paper, we use Krasnoselskii's fixed point theorem to establish the existence of
positive periodic solutions of second-order nonlinear neutral differential equations. Our …

We use Krasnoselskii's fixed point theorem to show that the neutral nonlinear summation-
difference system with infinite delay Δ x (n)= P (n)+ A (n) x (n− τ (n))+ Δ Q (n, x (n− g (n)))+∑ …

In this thesis, we study qualitative properties of broad classes of nonlinear delay dynamic
and delay integro-dynamic equations. We start by giving some fixed point theorems, results …

In this thesis we study a quantitative and qualitative properties of broad classes of nonlinear
delay differential equations of neutral type. We start by giving some fixed point theorems and …