Add to ORKGA Schur-complement multigrid method for the solution of convection-diffusion problems with strongly discontinuous coefficients is the focus of this paper. This algorithm turns out to be robust and efficient for our test problems. Its convergence rate is in all cases superior to the standard multigrid method. The Schur-complement multigrid method is applied to the problem of decontamination of a heterogeneous porous medium by flushing. We determine the typical decontamination time for several configurations and its functional dependence on the statistical properties of the hydraulic conductivity distribution of the medium. (orig.)Available from TIB Hannover: RO 3493(1995,1) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische Inform...
In the present paper, a new stochastic framework is introduced to decompose random variables. This d...
summary:A nonlinear differential system for describing an air-water system in groundwater hydrology ...
Keywords continuous Galerkin method ? multigrid iteration ? two-level Fourier analysis ? point-wise ...
We consider a two-grid method based on approximation of the Schur complement. We study the dependenc...
We consider a two-grid method for solving 2D convection-diffusion problems. The coarse grid correcti...
Dahmen W, Elsner L. Algebraic Multigrid Methods and the Schur Complement. In: Hackbusch W, ed. Robus...
Multigrid methods are described for solving the pressure equation arising from a finite element disc...
: We introduce a high-order compact difference scheme with multigrid algorithm to solve the convecti...
Two efficient and scalable numerical solution methods will be compared using exact Jacobians to solv...
Groundwater contaminant modeling presents several challenges to the mathematician. Among these are t...
Mathematical models of the transport and fate of dissolved chemicals in groundwater are becoming inc...
The multigrid solution of coupled porous media and Stokes flow problems is considered. The Darcy eq...
In this paper we introduce and analyse a new Schur complement approximation based on incomplete Gaus...
In the paper, we present multigrid methods for solving scalar conservation laws and convection diffu...
AbstractIn this paper, we present parallel solvers for large linear systems arising from the finite-...
In the present paper, a new stochastic framework is introduced to decompose random variables. This d...
summary:A nonlinear differential system for describing an air-water system in groundwater hydrology ...
Keywords continuous Galerkin method ? multigrid iteration ? two-level Fourier analysis ? point-wise ...
We consider a two-grid method based on approximation of the Schur complement. We study the dependenc...
We consider a two-grid method for solving 2D convection-diffusion problems. The coarse grid correcti...
Dahmen W, Elsner L. Algebraic Multigrid Methods and the Schur Complement. In: Hackbusch W, ed. Robus...
Multigrid methods are described for solving the pressure equation arising from a finite element disc...
: We introduce a high-order compact difference scheme with multigrid algorithm to solve the convecti...
Two efficient and scalable numerical solution methods will be compared using exact Jacobians to solv...
Groundwater contaminant modeling presents several challenges to the mathematician. Among these are t...
Mathematical models of the transport and fate of dissolved chemicals in groundwater are becoming inc...
The multigrid solution of coupled porous media and Stokes flow problems is considered. The Darcy eq...
In this paper we introduce and analyse a new Schur complement approximation based on incomplete Gaus...
In the paper, we present multigrid methods for solving scalar conservation laws and convection diffu...
AbstractIn this paper, we present parallel solvers for large linear systems arising from the finite-...
In the present paper, a new stochastic framework is introduced to decompose random variables. This d...
summary:A nonlinear differential system for describing an air-water system in groundwater hydrology ...
Keywords continuous Galerkin method ? multigrid iteration ? two-level Fourier analysis ? point-wise ...