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arXiv 1710.03331math.NAcs.NA
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对称椭圆问题的近优非符合方法。I -- 抽象理论

Quasi-optimal nonconforming methods for symmetric elliptic problems. I -- Abstract theory

Andreas Veeser, Pietro Zanotti

AI总结:

本文研究对称椭圆问题的非符合方法,通过稳定性与一致性概念定义其近优性,并探讨非符合性对常数的影响。

摘要:

我们考虑对称椭圆问题的非符合方法,并通过适当的稳定性与一致性概念来表征其近优性。近优常数被确定,并通过两种替代的一致性度量来量化非符合性对其大小的影响。通过识别近优方法的结构,我们表明其构造归结为选择适当的线性算子,将离散函数映射到符合函数。此类平滑算子将在本文后续部分为各种有限元空间设计。

英文摘要:

We consider nonconforming methods for symmetric elliptic problems and characterize their quasi-optimality in terms of suitable notions of stability and consistency. The quasi-optimality constant is determined and the possible impact of nonconformity on its size is quantified by means of two alternative consistency measures. Identifying the structure of quasi-optimal methods, we show that their construction reduces to the choice of suitable linear operators mapping discrete functions to conforming ones. Such smoothing operators are devised in the forthcoming parts of this work for various finite element spaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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