# Comment on “An Approximation to Solution of  Space and Time Fractional Telegraph Equations by He's Variational Iteration Method”

Authors: Yi-Hong Wang; Lan-Lan Huang
Journal: Mathematical Problems in Engineering
 (2013)

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## Abstract

The variational iteration method was applied  to the time
fractional telegraph equation and some variational iteration
formulae were suggested in (Sevimlican, 2010).  Those formulae are improved by Laplace
transform from which the approximate solutions of higher
accuracies can be obtained.


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## Body

## Conclusions

As is well known, the VIM became an efficient analytical tool in nonlinear science since it was proposed and the method was often used in fractional differential equations. This study illustrates the method in fractional calculus can be improved by the Laplace tranform method with which the Lagrange mutipliers can be identified explicitly.Recently, there are also other new applications of the variation iteration method to various nonlinear problems, that is, fuzzy equations [6, 7] and  q-fractional differential equations [8]. Readers are referred to the recent review article [9].



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*Source: 860914-2013-03-27.xml*