A pseudospectral Sinc method for numerical investigation of the nonlinear time-fractional Klein-Gordon and sine-Gordon equations

Document Type : Research Paper

Authors

Department of Mathematics, Qazvin Branch, Islamic Azad University, Qazvin, Iran

Abstract

In this paper, a pseudospectral method is proposed for solving the nonlinear time-fractional Klein-Gordon and sine-Gordon equations. The method is based on the Sinc operational matrices. A finite difference scheme is used to discretize the Caputo time-fractional derivative, while the spatial derivatives are approximated by the Sinc method. The convergence of the full discretization of the problem is studied. Some numerical examples are presented to confirm the accuracy and efficiency of the proposed method. The numerical results are compared with the analytical solution and the reported results in the literature. 

Keywords

References

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Computational Methods for Differential Equations
Volume 11, Issue 2
April 2023
Pages 357-368

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History

  • Receive Date: 24 January 2022
  • Revise Date: 14 August 2022
  • Accept Date: 24 October 2022

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