Multigrid-based ‘shifted-Laplacian’ preconditioning for the time-harmonic elastic wave equation

Keyphrases

• Multigrid 100%
• Shifted Laplacian 100%
• Time-harmonic Elastic Wave Equation 100%
• Acoustic Wave Equation 50%
• Jacobi 50%
• Multigrid Preconditioner 50%
• S-velocity 50%
• Local Mode Analysis 50%
• Velocity Ratio 50%
• Elastic Wave Equation 50%
• Numerical Performance 50%
• Multigrid Iteration 50%
• Wave number 50%
• Finite Difference Discretization 50%
• Damped Wave Equation 50%
• Frequency-domain Finite-difference 50%

Engineering

• Multigrid 100%
• Laplace Operator 100%
• Elastic Wave 100%
• Harmonics 100%
• Discretization 50%
• Performance 50%
• Mode Analysis 25%
• Application 25%
• Velocity 25%
• Numerical Example 25%
• Error 25%
• Standard Method 25%
• Acoustic Wave Equation 25%
• Elastic Case 25%
• Frequency Domain 25%

INIS

• harmonics 100%
• wave equations 100%
• laplacian 100%
• performance 50%
• applications 25%
• velocity 25%
• errors 25%
• s waves 25%
• sound waves 25%
• iterative methods 25%