An ‎extended Legendre wavelet ‎method‎ for solving differential equations with non analytic solutions

Authors

  • Fakhrodin Mohammadi Hormozgan University

DOI:

https://doi.org/10.30495/jme.v8i0.234

Keywords:

‎‎‎‎Extended Legendre ‎wavelets, ‎ Operational ‎matrix‎, ‎ ‎Tau ‎method, B‎undary value ‎problems‎, ‎ ‎C‎onvergency‎, ‎‎‎‎‎‎ Error analysis‎.

Abstract

A‎lthough spectral methods such as Galerkin‎, ‎Tau and pseudospectral methods do not work well for solving ordinary differential equations in which‎, ‎at least‎, ‎one of the coefficient functions or solution function is not analytic\cite{BabolianH02}‎, ‎but it is shown that the Legendre wavelet Galerkin method is suitable for solving this kind of problems provided that the singular points have the form $2^{-k}$ for some positive integer $k$[4]‎. ‎However‎, ‎for the other type of singular point the Legendre ‎wavelet ‎basis ‎are‎ not an efficient method‎. ‎To overcome this difficulty‎, ‎in this study we use the extended Legendre wavelet basis and Tau method for solving a wide range of singular boundary value problems‎. ‎T‎he ‎c‎‎onvergence ‎p‎roperties and ‎error analysis of the proposed method is ‎investigated.‎‎ ‎‎A comparison between the standard Legendre wavelets and extended Legendre wavelets methods shows the capability of the proposed method‎.

Author Biography

Fakhrodin Mohammadi, Hormozgan University

Assistant Professor

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Additional Files

Published

2015-01-05

Issue

Section

Vol. 8, No. 4, (2014)