Two-level Fourier analysis of multigrid for higher-order finite-element discretizations of the Laplacian.
Yunhui HeScott MacLachlanPublished in: Numer. Linear Algebra Appl. (2020)
Keyphrases
- finite element
- fourier analysis
- higher order
- high order
- fourier transform
- frequency domain
- non stationary
- natural images
- multiresolution
- finite element analysis
- partial differential equations
- spherical harmonics
- image analysis
- boundary conditions
- pairwise
- markov random field
- multiscale
- mesh generation
- numerical solution
- edge detection
- gabor filters
- eigendecomposition
- object recognition