Schwarz Analysis of an Iterative Substructuring Algorithm for P1 Nonconforming Finite Elements

نویسنده

  • S. Meddahi
چکیده

We give an iterative substructuring algorithm for the P1 nonconforming nite element approximation of a second order elliptic problem in dimension two. The algorithm and its convergence analysis are based on an abstract framework of the Schwarz method. A bound is established for the condition number of this iterative method which grows only logarithmically with the number of degrees of freedom. We olso give an application of this method to the lowest order Raviart-Thomas mixed method.

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تاریخ انتشار 2007