Runge-Kutta Finite Element Method for the Fractional Stochastic Wave Equation

Nwankwo Jude Chukwuyem *

Department of Mathematics, University of Delta, Agbor, Nigeria.

Njoseh Ignatius Nkonyeasua

Department of Mathematics, Delta State University, Abraka, Nigeria.

Joshua Sarduana Apanapudor

Department of Mathematics, Delta State University, Abraka, Nigeria.

*Author to whom correspondence should be addressed.


Abstract

This paper presents the development and application of the Runge-Kutta Finite Element Method (RK-FEM) to solve fractional stochastic wave equations. Fractional differential equations (FDEs) play a significant role in modelling complex systems with memory and hereditary properties, while the inclusion of stochastic components accounts for randomness inherent in physical systems. The fractional stochastic wave equation represents a natural extension of classical wave equations, incorporating both fractional time derivatives and stochastic processes to model phenomena such as anomalous diffusion and noise-driven wave propagation. We propose a hybrid numerical scheme that combines the high accuracy of the Runge-Kutta Method or temporal discretization with the flexibility of the Finite Element Method (FEM) for spatial discretization. The Caputo fractional derivative is used to describe the time-fractional component of the equation. A white noise-driven stochastic term is incorporated into the system to account for randomness. We analyze the stability and convergence properties of the RK-FEM scheme and demonstrate its effectiveness through numerical simulations. The results illustrate that the proposed method provides accurate and stable solutions for fractional stochastic wave equations, making it a robust tool for investigating wave phenomena in complex and uncertain environments.

Keywords: Runge-Kutta method, Finite Element Method (FEM), fractional stochastic wave equation, stochastic processes


How to Cite

Chukwuyem, Nwankwo Jude, Njoseh Ignatius Nkonyeasua, and Joshua Sarduana Apanapudor. 2024. “Runge-Kutta Finite Element Method for the Fractional Stochastic Wave Equation”. Journal of Advances in Mathematics and Computer Science 39 (12):70-83. https://doi.org/10.9734/jamcs/2024/v39i121950.