Superconvergence of numerical gradient for weak Galerkin finite element methods on nonuniform Cartesian partitions in three dimensions.
Dan LiYufeng NieChunmei WangPublished in: Comput. Math. Appl. (2019)
Keyphrases
- finite element methods
- finite difference
- partial differential equations
- numerical solution
- differential equations
- finite element
- numerical analysis
- numerical methods
- finite element model
- image denoising
- image processing
- clustering algorithm
- anisotropic diffusion
- level set
- energy functional
- multiscale
- edge detection
- feature vectors
- image enhancement
- linear programming
- image analysis