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A highly accurate Jacobi collocation algorithm for systems of high‐order linear differential–difference equations with mixed initial conditions |
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| Authors: | A H Bhrawy E H Doha D Baleanu R M Hafez |
| Affiliation: | 1. Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia;2. Department of Mathematics, Faculty of Science, Beni‐Suef University, Beni‐Suef, Egypt;3. Department of Mathematics, Faculty of Science, Cairo University, Giza, Egypt;4. Department of Mathematics and Computer Sciences, Cankaya University, Ankara, Turkey;5. Institute of Space Sciences, Magurele‐Bucharest, R 76900 Romania;6. Department of Basic Science, Institute of Information Technology, Modern Academy, Cairo, Egypt |
| Abstract: | In this paper, a shifted Jacobi–Gauss collocation spectral algorithm is developed for solving numerically systems of high‐order linear retarded and advanced differential–difference equations with variable coefficients subject to mixed initial conditions. The spatial collocation approximation is based upon the use of shifted Jacobi–Gauss interpolation nodes as collocation nodes. The system of differential–difference equations is reduced to a system of algebraic equations in the unknown expansion coefficients of the sought‐for spectral approximations. The convergence is discussed graphically. The proposed method has an exponential convergence rate. The validity and effectiveness of the method are demonstrated by solving several numerical examples. Numerical examples are presented in the form of tables and graphs to make comparisons with the results obtained by other methods and with the exact solutions more easier. Copyright © 2015 John Wiley & Sons, Ltd. |
| Keywords: | system of differential‐difference equations collocation method Jacobi– Gauss quadrature shifted Jacobi polynomials |
