A fast accurate approximation method with multigrid solver for two-dimensional fractional sub-diffusion equation

Keyphrases

• Accurate Approximation 100%
• Approximation Methods 100%
• Approximation Scheme 66%
• Block Diagonal 33%
• Block Lower Triangular Toeplitz Matrix 33%
• Block Matrix 33%
• Block Structure 33%
• Block-circulant 33%
• Circulant Approximation 33%
• Diagonal Block 100%
• Diagonal System 33%
• Fast Fourier Transform 33%
• Finite Difference Discretization 33%
• Fractional Sub-diffusion Equation 100%
• Fractional Time Derivative 33%
• Identity Matrix 33%
• Laplacian Matrix 33%
• Laplacian Operator 33%
• Linear Systems 33%
• Main Diagonals 33%
• Multigrid Method 66%
• Multigrid Solver 100%
• Numerical Examples 33%
• Scalar 33%
• Two Dimensional 100%
• Two-dimensional Matrix 33%

Mathematics

• Approximation Method 100%
• Block Matrix 33%
• Complex Scalar 33%
• Diagonal 100%
• Diffusion Equation 100%
• Discretization 33%
• Fast Fourier Transform 33%
• Finite Difference Method 33%
• Identitymatrix 33%
• Laplacian Matrix 33%
• Laplacian Operator 33%
• Linear System 33%
• Main Diagonal 33%
• Matrix (Mathematics) 33%
• Multigrid Method 66%
• Numerical Example 33%
• Scalar Time 33%
• Structured Block 33%
• Toeplitz Matrix 33%