Analysis of non-conforming DPG methods on polyhedral meshes using fractional Sobolev norms

Analysis of non-conforming DPG methods on polyhedral meshes using fractional Sobolev norms
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DOI:
10.1016/j.camwa.2020.09.018
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发表时间:
2020-11
期刊:
Comput. Math. Appl.
影响因子:
--
通讯作者:
C. Bacuta;L. Demkowicz;Jaime Mora;C. Xenophontos
C. Bacuta;L. Demkowicz;Jaime Mora;C. Xenophontos
中科院分区:
其他
文献类型:
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作者:
C. Bacuta;L. Demkowicz;Jaime Mora;C. Xenophontos

文献摘要

相似文献

这项工作涉及两个问题:(A)分析建立在分数能量空间中的不连续Petrov-Galerkin(DPG)方法,(B)利用结果来研究一般多面体网格的DPG方法的非协调版本。我们使用模型拉普拉斯方程的超弱变分公式。理论估算得到了三维数值实验的支持。
The work is concerned with two problems: (a) analysis of a discontinuous Petrov–Galerkin (DPG) method set up in fractional energy spaces, (b) use of the results to investigate a non-conforming version of the DPG method for general polyhedral meshes. We use the ultraweak variational formulation for the model Laplace equation. The theoretical estimates are supported with 3D numerical experiments.