Comparison of Algebraic Multigrid Preconditioners for Solving Helmholtz Equations.
Dandan ChenTing-Zhu HuangLiang LiPublished in: J. Appl. Math. (2012)
Keyphrases
- nonlinear equations
- linear systems
- image analysis
- inverse problems in image processing
- computationally expensive
- boundary conditions
- multiresolution
- polynomial equations
- partial differential equations
- numerical methods
- algebraic equations
- image restoration
- difference equations
- higher order
- optimization problems
- sufficient conditions
- least squares
- iterative methods
- gauss seidel method
- multiscale