Convergence analysis of a weak Galerkin finite element method on a Shishkin mesh for a singularly perturbed fourth-order problem in 2D.
Shicheng LiuXiangyun MengQilong ZhaiPublished in: CoRR (2023)
Keyphrases
- finite element method
- convergence analysis
- fourth order
- partial differential equations
- numerical solution
- numerical methods
- anisotropic diffusion
- image denoising
- level set
- boundary element method
- global convergence
- differential equations
- finite element
- image processing
- image enhancement
- optimality conditions
- noise removal
- numerical simulations
- multiscale
- approximation methods
- boundary conditions
- high order
- diffusion equation
- nonlinear diffusion
- convergence rate
- image interpolation
- finite element model
- cost function
- computer vision
- edge detection
- denoising
- markov random field
- optimization algorithm
- object recognition