Abstract
A numerical technique is presented for the solution of system of Fredholm integro-differential equations. The method consists of expanding the required approximate solution as the elements of Alpert multiwavelet functions (see Alpert B. et al. J. Comput. Phys. 2002, vol. 182, pp. 149–190). Using the operational matrix of integration and wavelet transform matrix, we reduce the problem to a set of algebraic equations. This system is large. We use thresholding to obtain a new sparse system; consequently, GMRES method is used to solve this new system. Numerical examples are included to demonstrate the validity and applicability of the technique. The method is easy to implement and produces accurate results.
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Saray, B.N., Lakestani, M. & Razzaghi, M. Sparse representation of system of Fredholm integro-differential equations by using alpert multiwavelets. Comput. Math. and Math. Phys. 55, 1468–1483 (2015). https://doi.org/10.1134/S0965542515090031
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DOI: https://doi.org/10.1134/S0965542515090031