Optimal block circulant preconditioners for block Toeplitz systems with application to evolutionary PDEs

Keyphrases

• All-at-once System 33%
• Block Circulant Matrix 33%
• Block Toeplitz Matrix 33%
• Block Toeplitz Systems 100%
• Block-circulant Preconditioners 100%
• Commuting 66%
• Diagonalizability 33%
• Eigenvalues 33%
• Evolutionary Partial Differential Equations 33%
• Evolutionary PDEs 100%
• Hermitian 100%
• Hermitian Matrix 33%
• Hermitian Positive Definite 33%
• Minimal Residual 33%
• Minimal Residual Method 33%
• Modified Matrix 66%
• Non-Hermitian 66%
• Numerical Examples 33%
• Optimal Block Size 100%
• Permutation Matrix 33%
• Preconditioned Matrix 33%
• Preconditioning Strategy 33%
• Simple Permutation 33%
• Superlinear Convergence 33%
• Symmetrization 33%

Mathematics

• Circulant Matrix 33%
• Eigenvalue 33%
• Hermitian Matrix 33%
• Matrix (Mathematics) 100%
• Minimal Residual Method 33%
• Numerical Example 33%
• Partial Differential Equation 100%
• Permutation Matrix 33%
• Positive Definite 33%
• Residuals 33%
• Toeplitz Matrix 33%