An Unconditionally Stable Spectral-Finite Difference Scheme for the Nonlinear Time-Fractional Klein-Gordon-Zakharov System
نویسندگان
1 Department of Mathematics, Faculty of Sciences, University of Zanjan, Zanjan, I. R. Iran
2 Department of Mathematics, Faculty of Sciences, University of Zanjan, Zanjan, I. R. Iran
doi
10.22052/mir.2025.256648.1513چکیده
This study presents an innovative numerical scheme to address the non-linear time-fractional coupled Klein-Gordon-Zakharov equation. The spatial derivatives are approximated using a pseudo-spectral method, which utilizes Lagrange polynomials at Chebyshev points as basis functions. Time discretization is accomplished through the finite difference method. The proposed scheme is rigorously proven to be unconditionally stable, ensuring robustness in numerical simulations. Furthermore, the time convergence order of the scheme is derived, highlighting its reliability. Numerical experiments demonstrate the exceptional accuracy and robustness of the method, with its exponential precision offering precise and reliable solutions. This approach serves as a powerful tool for solving complex non-linear partial differential equations, making it highly applicable in various scientific and engineering domains that demand effective and efficient computational techniques.