Block ω-Circulant Preconditioners for Parabolic Optimal Control Problems

Keyphrases

• Preconditioned Matrix 100%
• Block-circulant Preconditioners 100%
• Parabolic Optimal Control Problems 100%
• Optimal Control Problem 100%
• Generalized Minimal Residual (GMRES) 100%
• Numerical Results 50%
• First-order 50%
• Linear Systems 50%
• Preconditioned Krylov Subspace Methods 50%
• Regularization Parameter 50%
• Eigenvalues 50%
• Fast Fourier Transform 50%
• Parabolic Equation 50%
• Singular Values 50%
• Block-circulant 50%
• Ordering Time 50%
• Parallel-in-time 50%
• All-at-once 50%
• Rapid Convergence 50%
• Minimal Residual Method 50%
• Time-discretization Method 50%
• Residual Approach 50%

Mathematics

• Parabolic 100%
• Optimal Control Problem 100%
• Matrix (Mathematics) 66%
• Minimal Residual Method 66%
• Time Discretization 33%
• Clustering 33%
• Regularization 33%
• Residuals 33%
• Linear System 33%
• Eigenvalue 33%
• Fast Fourier Transform 33%
• Parabolic Equation 33%
• Singular Value 33%