Qualitative Properties Of Some Kinds Of Impulsive Differential Equations With Piecewise Constant Argument

The thesis of Master's Degree is composed of two chapters.In the first chapter, We study the stability and oscillation of the equations firstNext we study the oscillation the nonoscillation of the equationsLast we study the oscillation criteria of the equationsIn chapter two, the existence of periodic solutions for the equationsis studied by constructing periodic sequence solutions of difference equations.The result of this paper reveals the internal relations of the qualitative properties between the impulsive equations we discuss and the corresponding equations without impulse.It also depicts the impulsive condictions which result in the qualitativeproperties.