Maximum Norm Error Estimators for Three-Dimensional Elliptic Problems
Maximum Norm Error Estimators for Three-Dimensional Elliptic Problems
复制标题
三维椭圆问题的最大范数误差估计器
DOI:
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发表时间:
1999
影响因子:
2.9
通讯作者:
C. Padra
中科院分区:
文献类型:
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作者:
E. Dari;R. Durán;C. Padra
In this paper we define an a posteriori error estimator for finite element approximations of 3-d elliptic problems. We prove that the estimator is equivalent, up to logarithmic factors of the meshsize, to the maximum norm of the error. The results are valid for an arbitrary polyhedral domain and rather general meshes. We also obtain analogous results for the nonconforming method of Crouzeix--Raviart. Finally, we present some numerical results comparing adaptive procedures based on controlling the error in different norms.