NUMERICAL SOLUTION OF THE TIME-FRACTIONAL
DIFFUSION EQUATIONS VIA QUARTER-SWEEP
PRECONDITIONED GAUSS-SEIDEL METHOD
Andang Sunarto1, Jumat Sulaiman2
Jackel Chew Vui Lung3 1 IAIN Bengkulu, Indonesia
Jl Raden Fatah Kota Bengkulu
Bengkulu, INDONESIA 2 Faculty of Science and Natural Resource
Universiti Malaysia Sabah
88400, Kota Kinabalu, Sabah, MALAYSIA 3 Faculty of Computing and Informatics
Universiti Malaysia Sabah Labuan International Campus
87000, Labuan F.T., MALAYSIA
In this research, we propose the approximate solution of the time-fractional diffusion equation based on a quarter-sweep implicit finite difference approximation equation. To derive this approximation equation, Caputo’s time-fractional derivative has been used to discretize the proposed problems. By using the Caputo finite difference approximation equation, a linear system will be generated and solved iteratively. In addition to that, formulation and implementation the QSPGS iterative method are also presented. Based on the numerical results of the proposed iterative method, it can be concluded that the proposed iterative method is superior to the FSPGS and HSPGS iterative method.
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