Solution of third order linear and nonlinear boundary value problems of integro-differential equations using Haar Wavelet method
| Autor: | Muhammad Awais, Shah Nazir, Nawal A. Alshehri, M.M. Alqarni, Emad E. Mahmoud, Kamal Shah, Rohul Amin |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Integro-differential equations Gauss elimination technique Differential equation Physics QC1-999 Linear system Collocation and Gauss points Haar wavelet General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology Collocation (remote sensing) 01 natural sciences Nonlinear system symbols.namesake Rate of convergence Gaussian elimination 0103 physical sciences symbols Applied mathematics Boundary value problem 0210 nano-technology Mathematics |
| Zdroj: | Results in Physics, Vol 25, Iss, Pp 104176-(2021) |
| ISSN: | 2211-3797 |
| DOI: | 10.1016/j.rinp.2021.104176 |
| Popis: | In this paper, numerical solution of third order integro-differential equation with boundary conditions is given utilizing Haar collocation technique. Both nonlinear and linear integro-differential equations are solved using this method. The third order derivative is approximated using Haar functions in both nonlinear and linear integro-differential equations. Integration is used to obtain the expression of lower order derivatives as well as the solution for the unknown function. The Gauss elimination approach is utilized for linear systems and Broyden approach is adopted for nonlinear systems. Validation and convergence of the proposed approach are illustrated using some examples. At various collocation and gauss points, the maximum absolute and root mean square errors are compared to the exact solution. The convergence rate is also measured using different numbers of nodal points, and it is nearly equal to 2 . |
| Databáze: | OpenAIRE |
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