Existence of a Periodic Solution for Nonlinear Systems of Differential Equations with Retarded Argument

• Main Authors: Raad N.Butris (Author), Ayad S.Seeto (Author)
• Formato: Libro
• Publicado: College of Education for Pure Sciences, 2005-01-01T00:00:00Z.
• Subjects: article
• Acceso en liña: Connect to this object online.

In this paper we investigate the existence and approximation of the periodic solutions for nonlinear systems of differential equations with retarded argument, by using the method of periodic solutions of ordinary differential equation which are given be A. M, Somilenko .