Technical Report 2006-004

Symmetric Part Preconditioning of the CG for Stokes Type Saddle-Point Systems

Owe Axelsson and Janos Karatson

February 2006

A nonsymmetric formulation of saddle-point systems is considered and symmetric part preconditioning of the conjugate gradient method (CGM) 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.

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