*NUMERICAL solutions to nonlinear differential equations, *LYAPUNOV stability, *EXPONENTS, *NUMERICAL solutions to differential equations, *MATHEMATICAL analysis, *MATHEMATICS
Abstract
Abstract: This paper considers the fourth-order nonlinear differential equations with a deviating argument. Sufficient conditions for the existence and exponential stability of the almost periodic solutions are established, which are new and complement previously known results. [ABSTRACT FROM AUTHOR]
Abstract: In this paper, we study the positive almost periodic solutions for a class of almost periodic Lotka-Volterra type system with delays and feedback controls. Applying Schauder’s fixed point theorem, a criterion on the existence of the positive almost periodic solution of the system is obtained. Our new criterion, which improves and generalizes some well known results, can be easily checked. [Copyright &y& Elsevier]