Modified DTS Iteration Methods for Spatial Fractional Diffusion Equations
نویسندگان
چکیده
For the discretized linear systems of spatial fractional diffusion equations, we construct a class modified DTS iteration method and give its asymptotic convergence conditions. Then, design fast preconditioner by replacing Toeplitz matrix T with τ to accelerate rates GMRES method. Theoretically, show that spectrum preconditioned is clustered around one. Numerical experiments verify validity constructed for
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ژورنال
عنوان ژورنال: Mathematics
سال: 2023
ISSN: ['2227-7390']
DOI: https://doi.org/10.3390/math11040931