Numerical Analysis and Scientific Computing Preprint Seria New Homogenization Method for Diffusion Equations
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چکیده
In this paper, we propose and investigate a new homogenization method for diffusion problems in domains with multiple inclusions with big values of diffusion coefficients. The diffusion problem is approximated by the P1-finite element method on a triangular mesh. The underlying algebraic problem is replaced by a special system with a saddle point matrix. For the solution of the saddle point system we use the typical asymptotic expansion. We prove the error estimates and convergence of the expended solutions. Numerical results confirm the theoretical conclusions.
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تاریخ انتشار 2017