Two-grid finite element methods for nonlinear time fractional variable coefficient diffusion equations.
Yunhua ZengZhijun TanPublished in: Appl. Math. Comput. (2022)
Keyphrases
- finite element methods
- diffusion equation
- finite difference
- partial differential equations
- scale space
- anisotropic diffusion
- diffusion process
- numerical solution
- image enhancement
- noise removal
- nonlinear diffusion
- scale spaces
- boundary conditions
- coherence enhancing diffusion
- diffusion processes
- finite element
- filtering method
- numerical analysis
- multiscale
- preprocessing
- image processing
- image compression
- level set
- edge detection
- multiresolution