Comparison of Legendre polynomial approximation and variational iteration method for the solutions of general linear Fredholm integro-differential equations

Authors:
Necdet Bildik;Ali Konuralp;Salih Yalçınbaş
Affiliations:
Celal Bayar University, Faculty of Art and Sciences, Department of Mathematics, Muradiye Campus, Manisa, Turkiye;Celal Bayar University, Faculty of Art and Sciences, Department of Mathematics, Muradiye Campus, Manisa, Turkiye;Celal Bayar University, Faculty of Art and Sciences, Department of Mathematics, Muradiye Campus, Manisa, Turkiye
Venue:
Computers & Mathematics with Applications
Year:
2010

Citing 6
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Abstract

In this study it is shown that the numerical solutions of linear Fredholm integro-differential equations obtained by using Legendre polynomials can also be found by using the variational iteration method. Furthermore the numerical solutions of the given problems which are solved by the variational iteration method obviously converge rapidly to exact solutions better than the Legendre polynomial technique. Additionally, although the powerful effect of the applied processes in Legendre polynomial approach arises in the situations where the initial approximation value is unknown, it is shown by the examples that the variational iteration method produces more certain solutions where the first initial function approximation value is estimated. In this paper, the Legendre polynomial approximation (LPA) and the variational iteration method (VIM) are implemented to obtain the solutions of the linear Fredholm integro-differential equations and the numerical solutions with respect to these methods are compared.