“…Several authors have previously stated such equations and studied their theoretical or numerical solutions. The He's approximation methods, which include the Homotopy Analysis Method (HAM), [1,3,8,13], Homotopy Perturbation Method (HPM), [9], Variational Iteration Method (VIM), [6,10], are among the approximate analytical methods used for solving differential equations in operator form with fractional derivatives or integrals.…”