Periodic Solution for certain Nonlinear System of Volterra Integral Equations

In this paper, the numerical-analytic method has been used by (Samoilenko A. M.) to investigate the existence and approximation of periodic solutions for certain of nonlinear system of volterra integral equations. Also these methods could be developed and extended throughout the study. Thus, the nonlinear integral equation that we have introduced in this study become more general than those introduced by Butris R. N.