Comparative work for the source identification in parabolic inverse problem based on Taylor and Chebyshev wavelet methods

In this article, we study wavelet collocation methods based on Taylor and Chebyshev wavelets for the source identification in parabolic inverse problem. In the proposed method, highest order derivative is written in terms of Taylor and Chebyshev wavelet series and required unknown terms are obtained using successive integration. Taylor series approximation has been utilized to obtain the source control parameter. Convergence analysis is carried out in order to guarantee the accuracy of the method. Numerical results have been obtained based on the proposed methods and it is shown that Taylor wavelet method provide us better result than the Chebyshev wavelet method. CPU time has also been shown to ensure the efficiency of the method.

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