Quasi-optimal preconditioners for finite element approximations of diffusion dominated convection-diffusion equations on (nearly) equilateral triangle meshes.
Alessandro RussoStefano Serra CapizzanoCristina Tablino PossioPublished in: Numer. Linear Algebra Appl. (2015)
Keyphrases
- diffusion equation
- finite element
- finite difference
- anisotropic diffusion
- diffusion process
- diffusion processes
- partial differential equations
- scale space
- edge preserving
- triangle mesh
- boundary conditions
- noise removal
- image enhancement
- nonlinear diffusion
- filtering method
- scale spaces
- finite element analysis
- soft tissue
- mesh generation
- finite element method
- numerical solution
- boundary element
- finite element model
- multiscale
- edge detection
- image processing
- coherence enhancing diffusion
- information diffusion