Abstract
In this work, a meshfree technique based on radial basis functions (RBFs) is proposed for the study of time-fractional higher order partial differential equations (PDEs) of constant and variable coefficients. The RBFs used containing shape parameter, the selection of which is not an easy task and affects stability and accuracy of the results. The required shape parameter has been computed with the help of recently developed algorithm in literature. Computer simulations are performed for six different time-fractional PDEs which features excellent agreement with the exact solutions and earlier works. Approximation quality of the computed solutions are assessed via \(E_{2}\), \(E_{\infty }\) and \(E_{\text {rms}}\) error norms.
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Acknowledgements
The authors are thankful to the anonymous reviewers for their constructive comments that have improved quality of the current work. Second author acknowledges the support of GIK Institute for his Ph.D. studies.
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Haq, S., Hussain, M. The meshless Kansa method for time-fractional higher order partial differential equations with constant and variable coefficients. RACSAM 113, 1935–1954 (2019). https://doi.org/10.1007/s13398-018-0593-x
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DOI: https://doi.org/10.1007/s13398-018-0593-x
Keywords
- Meshless Kansa method
- Radial basis functions collocation method
- High order PDEs
- Caputo fractional derivative
- Shape parameter