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arXiv 1105.4101math.APcs.NAmath-phmath.MPmath.NA
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外部区域椭圆问题的泛函后验误差估计

Functional A Posteriori Error Estimates for Elliptic Problems in Exterior Domains

Dirk Pauly, Sergey Repin

AI总结:

针对线性椭圆方程外部区域边值问题,基于纯泛函论证推导了可计算且保证的误差上界,适用于任何属于能量空间的近似解。

摘要:

本文关注于线性椭圆方程外部区域边值问题的精确解与近似解之差的、可计算且有保证的上界的推导。我们的分析基于纯泛函论证,不依赖于近似方法的特定性质。因此,本文推导的估计适用于任何属于相应能量空间的近似解。此类估计(也称为泛函型误差上界)此前已针对有界域问题得到推导。

英文摘要:

This paper is concerned with the derivation of computable and guaranteed upper bounds of the difference between the exact and the approximate solution of an exterior domain boundary value problem for a linear elliptic equation. Our analysis is based upon purely functional argumentation and does not attract specific properties of an approximation method. Therefore, the estimates derived in the paper at hand are applicable to any approximate solution that belongs to the corresponding energy space. Such estimates (also called error majorants of the functional type) have been derived earlier for problems in bounded domains.

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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