Paper Title
Variables in The Asymptotic Stability of Nonlinear Difference Systems

Abstract
Some asymptotic stability criteria are derived for systems of nonlinear functional differential equations with unbounded delays. The criteria are described as matrix equations or matrix inequalities, which are computationally flexible and efficient. The theories are then applied to the stabilization of time-delay systems via standard feedback control (SFC) or time-delayed feedback control (DFC). Several examples are given to illustrate the results. Keywords- System with unbounded delay; State feedback control; Asymptotic stability; Stabilization of time-delay system.