Spectral analysis and multigrid preconditioners for two-dimensional space-fractional diffusion equations.
Hamid MoghaderiMehdi DehghanMarco DonatelliMariarosa MazzaPublished in: J. Comput. Phys. (2017)
Keyphrases
- spectral analysis
- diffusion equation
- anisotropic diffusion
- partial differential equations
- boundary conditions
- edge preserving
- scale space
- autoregressive
- multiscale
- diffusion process
- speech signal
- multiresolution
- image restoration
- heart rate variability
- machine learning
- sufficient conditions
- image analysis
- feature extraction
- computer vision