Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
470037 | Computers & Mathematics with Applications | 2008 | 11 Pages |
Abstract
The CGM is studied for nonsymmetric elliptic problems with both Dirichlet and mixed boundary conditions. The mesh independence of the convergence is an important property when symmetric part preconditioning is applied to the FEM discretizations of the boundary value problem. Computations in two dimensions are presented to illustrate the mesh independent superlinear convergence for convection-diffusion equations with both types of boundary conditions. Preconditioning by the leading term plus a zeroth-order term is also investigated in the aspect of superlinear convergence through numerical computations.
Related Topics
Physical Sciences and Engineering
Computer Science
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Authors
Tamás Kurics,