In this paper, a novel iterative method is proposed to obtain approximate-analytical solutions for the linear systems of first-order fuzzy differential equations (FDEs) with fuzzy constant coefficients (FCCs) while avoiding ...

The variational iteration method is widely used in approximate calculation. The main difficulty of the method is to identify the Lagrange multiplier, λ, for differential equations of fractional order, especially of high ...

The piecewise variational iteration method (VIM) for solving Riccati differential equations (RDEs) provides a solution as a sequence of iterates. Therefore, its application to RDEs leads to the calculation of terms that ...