In this paper, we show that the deflation method can be viewed as a possible implementation of the CG method with multilevel preconditioner. Further, we demonstrate efficiency and robustness of different implementations of multilevel preconditioners with different "coarse grid" spaces by solving a simple model problem
The balancing Neumann-Neumann (BNN) and the additive coarse grid correction (BPS) preconditioner are...
The balancing Neumann-Neumann (BNN) and the additive coarse grid correction (BPS) preconditioner are...
Existing multiscale solvers use a sequence of aggressive restriction, coarse-grid correction and pro...
Key words: multilevel preconditioners, deflation, nonsymmetric multiplicative precon-ditioner, gener...
It is well known that two-level and multilevel preconditioned conjugate gradient (PCG) methods provi...
For various applications, it is well-known that a multi-level, in particular two-level, precondition...
For various applications, it is well-known that a multi-level, in particular two-level, precondition...
International audienceA fully algebraic framework for constructing coarse spaces for multilevel prec...
International audienceA fully algebraic framework for constructing coarse spaces for multilevel prec...
International audienceA fully algebraic framework for constructing coarse spaces for multilevel prec...
International audienceA fully algebraic framework for constructing coarse spaces for multilevel prec...
It is well-known that two-level preconditioned conjugate gradient (PCG) methods provide ecient techn...
We present a preconditioning method for the iterative solution of large sparse systems of equations....
summary:An algorithm for using the preconditioned conjugate gradient method to solve a coarse level ...
Abstract. The balancing Neumann-Neumann (BNN) and the additive coarse grid correction (BPS) precondi...
The balancing Neumann-Neumann (BNN) and the additive coarse grid correction (BPS) preconditioner are...
The balancing Neumann-Neumann (BNN) and the additive coarse grid correction (BPS) preconditioner are...
Existing multiscale solvers use a sequence of aggressive restriction, coarse-grid correction and pro...
Key words: multilevel preconditioners, deflation, nonsymmetric multiplicative precon-ditioner, gener...
It is well known that two-level and multilevel preconditioned conjugate gradient (PCG) methods provi...
For various applications, it is well-known that a multi-level, in particular two-level, precondition...
For various applications, it is well-known that a multi-level, in particular two-level, precondition...
International audienceA fully algebraic framework for constructing coarse spaces for multilevel prec...
International audienceA fully algebraic framework for constructing coarse spaces for multilevel prec...
International audienceA fully algebraic framework for constructing coarse spaces for multilevel prec...
International audienceA fully algebraic framework for constructing coarse spaces for multilevel prec...
It is well-known that two-level preconditioned conjugate gradient (PCG) methods provide ecient techn...
We present a preconditioning method for the iterative solution of large sparse systems of equations....
summary:An algorithm for using the preconditioned conjugate gradient method to solve a coarse level ...
Abstract. The balancing Neumann-Neumann (BNN) and the additive coarse grid correction (BPS) precondi...
The balancing Neumann-Neumann (BNN) and the additive coarse grid correction (BPS) preconditioner are...
The balancing Neumann-Neumann (BNN) and the additive coarse grid correction (BPS) preconditioner are...
Existing multiscale solvers use a sequence of aggressive restriction, coarse-grid correction and pro...