Application of homotopy perturbation method and variational iteration method to nonlinear oscillator differential equations
The authors study the homotopy perturbation method (HPM) and variational iterative method (VIM) for nonlinear oscillator differential equations of the form \(u^{\prime\prime} + f (t, u, u^\prime ) = 0\). Some examples dealing with nonlinear initial value problems are solved by applying HPM and VIM. Comparing with the exact solutions, it is shown that the numerical solutions obtained by these methods are highly accurate.
scientific article; zbMATH DE number 5549552