Resultats globals: 3 registres trobats en 0.02 segons.
Documents de recerca, 3 registres trobats
Documents de recerca 3 registres trobats  
1.
9 p, 314.4 KB A block solver for the exponentally fitted IIPG-0 method / Ayuso de Dios, Blanca ; Lombardi, Ariel ; Pietra, Paola ; Zikatanov, Ludmil ; Centre de Recerca Matemàtica
We consider an exponentially fitted discontinuous Galerkin method for advection dominated problems and propose a block solver for the resulting linear systems. In the case of strong advection the solver is robust with respect to the advection direction and the number of unknowns.
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1055)  
2.
8 p, 352.6 KB Mutigrid preconditioner for nonconforming discretization of elliptic problems with jump coefficients / Ayuso de Dios, Blanca ; Holst, M. ; Zhu, Y. ; Zikatanov, Ludmil ; Centre de Recerca Matemàtica
In this paper, we present a multigrid preconditioner for solving the linear system arising from the piecewise linear nonconforming Crouzeix-Raviart discretization of second order elliptic problems with jump coe fficients. [...]
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1054)  
3.
28 p, 297.4 KB A subspace correction method for discontinuous Galerkin discretizations of linear elasticity equations / Ayuso de Dios, Blanca ; Georgiev, Ivan ; Kraus, Johannes ; Zikatanov, Ludmil ; Centre de Recerca Matemàtica
We study preconditioning techniques for discontinuous Galerkin discretizations of isotropic linear elasticity problems in primal (displacement) formulation. We propose subspace correction methods based on a splitting of the vector valued piecewise linear discontinuous finite element space, that are optimal with respect to the mesh size and the Lamé parameters. [...]
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1056)  

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