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Application of dual-Chebyshev wavelets for the numerical solution of boundary integral equations with logarithmic singular kernels

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Abstract

In this paper, the discrete Galerkin method based on dual-Chebyshev wavelets has been presented to approximate the solution of boundary integral equations of the second kind with logarithmic singular kernels. These types of integral equations occur as a reformulation of a boundary value problem of Laplace’s equation with linear Robin boundary conditions. The discrete Galerkin methods for solving logarithmic boundary integral equations with Chebyshev wavelets as a basis encounter difficulties for computing their singular integrals. To overcome this problem, we establish the dual-Chebyshev wavelets, such that they are orthonormal without any weight functions. This property adapts Chebyshev wavelets to discrete Galerkin method for solving logarithmic boundary integral equations. We obtain the error bound for the scheme and find that the convergence rate of the proposed method is of \(O(2^{-Mk})\). Finally, some numerical examples are presented to illustrate the efficiency and accuracy of the new technique and confirm the theoretical error analysis.

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Acknowledgements

The authors are very grateful to the reviewers for their valuable comments and suggestions which have improved the paper.

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Authors and Affiliations

  1. Department of Mathematics, Faculty of Sciences, Bu-Ali Sina University, Hamedan, 65178, Iran

    Pouria Assari

  2. Department of Applied Mathematics, Faculty of Mathematics and Computer Sciences, Amirkabir University of Technology, No. 424, Hafez Ave., Tehran, 15914, Iran

    Mehdi Dehghan

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  1. Pouria Assari
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  2. Mehdi Dehghan
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Correspondence to Pouria Assari.

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Assari, P., Dehghan, M. Application of dual-Chebyshev wavelets for the numerical solution of boundary integral equations with logarithmic singular kernels. Engineering with Computers 35, 175–190 (2019). https://doi.org/10.1007/s00366-018-0591-9

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  • DOI: https://doi.org/10.1007/s00366-018-0591-9

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