[LIBRO][B] Multilevel block factorization preconditioners: Matrix-based analysis and algorithms for solving finite element equations
PS Vassilevski - 2008 - books.google.com
This monograph is the first to provide a comprehensive, self-contained and rigorous
presentation of some of the most powerful preconditioning methods for solving finite element …
presentation of some of the most powerful preconditioning methods for solving finite element …
Recursive Krylov‐based multigrid cycles
We consider multigrid (MG) cycles based on the recursive use of a two‐grid method, in
which the coarse‐grid system is solved by µ⩾ 1 steps of a Krylov subspace iterative method …
which the coarse‐grid system is solved by µ⩾ 1 steps of a Krylov subspace iterative method …
Multiscale finite-element method for linear elastic geomechanics
The demand for accurate and efficient simulation of geomechanical effects is widely
increasing in the geoscience community. High resolution characterizations of the …
increasing in the geoscience community. High resolution characterizations of the …
Preconditioning of boundary value problems using elementwise Schur complements
This paper deals with an efficient technique for computing high-quality approximations of
Schur complement matrices to be used in various preconditioners for the iterative solution of …
Schur complement matrices to be used in various preconditioners for the iterative solution of …
Nonsymmetric preconditioning for conjugate gradient and steepest descent methods
We analyze a possibility of turning off post-smoothing (relaxation) in geometric multigrid
when used as a preconditioner in preconditioned conjugate gradient (PCG) linear and …
when used as a preconditioner in preconditioned conjugate gradient (PCG) linear and …
A reduced order model‐based preconditioner for the efficient solution of transient diffusion equations
This paper presents a novel class of preconditioners for the iterative solution of the
sequence of symmetric positive‐definite linear systems arising from the numerical …
sequence of symmetric positive‐definite linear systems arising from the numerical …
Nonuniformly weighted Schwarz smoothers for spectral element multigrid
J Stiller - Journal of Scientific Computing, 2017 - Springer
A hybrid Schwarz/multigrid method for spectral element solvers to the Poisson equation in
R^ 2 R 2 is presented. It extends the additive Schwarz method studied by Lottes and Fischer …
R^ 2 R 2 is presented. It extends the additive Schwarz method studied by Lottes and Fischer …
Gem–a platform for advanced mathematical geosimulations
R Blaheta, O Jakl, R Kohut, J Starý - … . Revised Selected Papers, Part I 8, 2010 - Springer
The contribution deals with the development of a 3-D finite-element package called GEM
and its aspirations in demanding mathematical modelling and simulations arising in …
and its aspirations in demanding mathematical modelling and simulations arising in …
Krylov improvements of the Uzawa method for Stokes type operator matrices
The paper is devoted to Krylov type modifications of the Uzawa method on the operator level
for the Stokes problem in order to accelerate convergence. First block preconditioners and …
for the Stokes problem in order to accelerate convergence. First block preconditioners and …
Space decomposition preconditioners and parallel solvers
R Blaheta - … and Advanced Applications: Proceedings of ENUMATH …, 2004 - Springer
This paper uses the general framework of space decomposition—subspace correction for
providing an overview of Schwarz-type preconditioners. The considered preconditioners are …
providing an overview of Schwarz-type preconditioners. The considered preconditioners are …