Abstract

The goal of this paper is investigation of the efficiency of iterative preconditioned cojugate gradient methods for solving linear systems of equations which arise in p-h-version of finite element methods. The results of numerical experiments are presented for the model boundary value problem with different values of h, p and iterative parameters. Some conclusions on the comparative costs of algorithms are made on the base of analysis of matrix structure of linear systems.

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ilin.pdf4.24 MB
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19-35