A Block Toeplitz Preconditioner for All-At-Once Systems from Linear Wave Equations

Keyphrases

• Preconditioned Matrix 100%
• Block Toeplitz 100%
• All-at-once System 100%
• Modified Matrix 100%
• Linear Wave Equation 100%
• Numerical Solution 50%
• Numerical Examples 50%
• Linear Systems 50%
• Toeplitz 50%
• Eigenvalues 50%
• Spectral Symbol 50%
• Fast Convergence 50%
• Krylov Subspace Methods 50%
• Discretize 50%
• Non-axisymmetric 50%
• Wave Equation 50%
• Convergence Guarantee 50%
• Absolute Value 50%
• Block-circulant Preconditioners 50%
• Parallel-in-time 50%
• Symmetric Positive Definite 50%
• McDonald's 50%
• Generalized Minimal Residual (GMRES) 50%
• Block Tridiagonal 50%
• Minimal Residual Method 50%
• Block Toeplitz Systems 50%
• Preconditioning Strategy 50%
• Symmetrization 50%
• Fast Sine Transform 50%
• Minimal Polynomial 50%

Mathematics

• Matrix (Mathematics) 100%
• Wave Equation 100%
• Minimal Residual Method 50%
• Numerical Solution 25%
• Numerical Example 25%
• Linear System 25%
• Eigenvalue 25%
• Main Result 25%
• Positive Definite 25%
• Absolute Value 25%
• Low Degree 25%
• Sine Transform 25%
• Minimal Polynomial 25%