Block-diagonal and indefinite symmetric preconditioners for mixed finite element formulations.
Ilaria PerugiaValeria SimonciniPublished in: Numer. Linear Algebra Appl. (2000)
Keyphrases
- finite element
- block diagonal
- semidefinite programming
- finite element analysis
- linear programming problems
- finite element method
- kernel matrix
- mesh generation
- affinity matrix
- finite element model
- image restoration
- augmented lagrangian
- dynamic programming
- linear systems
- primal dual
- low rank
- spectral clustering
- linear programming
- feature space