A τ-preconditioner for a non-symmetric linear system arising from multi-dimensional Riemann-Liouville fractional diffusion equation.
Xue-lei LinXin HuangMichael K. NgHai-Wei SunPublished in: Numer. Algorithms (2023)
Keyphrases
- multi dimensional
- diffusion equation
- anisotropic diffusion
- linear systems
- scale space
- noise removal
- diffusion process
- finite difference
- image enhancement
- partial differential equations
- numerical integration
- edge preserving
- boundary conditions
- scale spaces
- gaussian kernel
- nonlinear diffusion
- left invariant
- sufficient conditions
- preprocessing
- diffusion coefficient
- positive definite
- higher order
- high dimensional
- integral equation
- multiscale