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Title of Journal: Numer Math

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Abbravation: Numerische Mathematik

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Springer Berlin Heidelberg

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ISSN

0945-3245

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An adaptive anisotropic perfectly matched layer me

Authors: Zhiming Chen Tao Cui Linbo Zhang
Publish Date: 2013/05/22
Volume: 125, Issue: 4, Pages: 639-677
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Abstract

We develop an anisotropic perfectly matched layer PML method for solving the time harmonic electromagnetic scattering problems in which the PML coordinate stretching is performed only in one direction outside a cuboid domain The PML parameters such as the thickness of the layer and the absorbing medium property are determined through sharp a posteriori error estimates Combined with the adaptive finite element method the proposed adaptive anisotropic PML method provides a complete numerical strategy to solve the scattering problem in the framework of FEM which produces automatically a coarse mesh size away from the fixed domain and thus makes the total computational costs insensitive to the choice of the thickness of the PML layer Numerical experiments are included to illustrate the competitive behavior of the proposed adaptive method

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