Journal
PHYSICS LETTERS A
Volume 371, Issue 1-2, Pages 26-33Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2007.06.016
Keywords
variational iteration method; homotopy perturbation method; Lagrange multiplier; fractional differential equation; Caputo fractional derivative
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In this Letter, we implement the variational iteration method and the homotopy perturbation method, for solving the system of fraction differential equations (FDE) generated by a multi-order fraction differential equation. The fractional derivatives are described in the Caputo sense. In these schemes, the solution takes the form of a convergent series with easily computable components. Numerical results show that the two approaches are easy to implement and accurate when applied to partial differential equations of fractional order. An algorithm to convert a multi-order FDE has been suggested which is valid in the most general cases. (C) 2007 Elsevier B.V. All rights reserved.
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