Solving the Non-Linear System of Third-Order Boundary Value Problems By Using Hes Homotopy Perturbation Method,

In this paper we introduce a homotopy perturbation method (hpm) to solve nonlinear system of third order boundary value problems.using the hpm it is possible to find the exact solution in some cases or an approximate solution in convergent series forms.this method is a powerful devise for solving a wide variety of problems without anydiscretization linearizetion or small perturbations.some examples are presented andobtained results ensure that this method is very eective simple and has less the numerical computation