Symmetric Part Preconditioning of the CG Method for Stokes Type Saddle-Point Systems |
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| Authors: | O. Axelsson |
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| Affiliation: | Department of Information Technology , Uppsala University, Sweden and Institute of Geonics AS CR , Ostrava, Czech Republic |
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| Abstract: | A nonsymmetric formulation of saddle-point systems is considered, and symmetric part preconditioning of the CG method is applied. Linear and superlinear convergence estimates are derived for the finite element solution of the Stokes problem and of Navier's equations of elasticity. Mesh independence of the estimates is obtained from proper Hilbert space operator background. |
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| Keywords: | Conjugate gradient method Navier's equations of elasticity Preconditioning Regularization Stokes problem Symmetric part |
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