Convergence analysis of adaptive edge finite element method for variable coefficient time-harmonic Maxwell's equations

JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS

卷:376

Article

He, Bin¹  Yang, Wei^1,2  Wang, Hao² 

[1] Xiangtan Univ, Sch Math & Computat Sci, Hunan Key Lab Computat & Simulat Sci & Engn, Xiangtan 411105, Hunan, Peoples R China

[2] Xiangtan Univ, Sch Math & Computat Sci, Key Lab Intelligent Comp & Informat Proc, Minist Educ, Xiangtan 411105, Hunan, Peoples R China

关键词: AEFEM;    Time-harmonic Maxwell's equations;    Residual type posteriori error estimator;   

DOI  :  10.1016/j.cam.2020.112860

来源: Elsevier

【 摘 要 】

In this paper, our main goal is to study the convergence analysis of adaptive edge finite element method (AEFEM) based on arbitrary order Nedelec edge elements for the variable-coefficient time-harmonic Maxwell's equations, i.e., we prove that the AEFEM gives a contraction for the sum of the energy error and the error estimator, between two consecutive adaptive loops provided the initial mesh is fine enough. First, we give the variational problem of the variable-coefficient time-harmonic Maxwell's equations and the posteriori error estimator of the residual type. Then we establish the quasiorthogonality, the global upper bound of the error, the compressibility of the error estimator, and prove the convergence result. Finally, our numerical results verify that the error estimator is valid. (C) 2020 Elsevier B.V. All rights reserved.

【 授权许可】

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