Pointwise error estimates for $C^0$ interior penalty approximation of biharmonic problems

Pointwise error estimates for $C^0$ interior penalty approximation of biharmonic problems
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双调和问题的 $C^0$ 内部惩罚近似的点误差估计

DOI:
10.1090/mcom/3596
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发表时间:
2021
影响因子:
2
通讯作者:
Leykekhman, D.
Leykekhman, D.
中科院分区:
数学2区
文献类型:
--
作者:
Leykekhman, D.

文献摘要

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本文的目的是利用内点罚方法得到双调和问题的逐点整体和局部最佳逼近型误差估计。分析使用的域,这是假定为一个凸多边形的二进分解的技术。证明需要局部能量估计和新的逐点绿色函数估计的连续问题,有独立的利益。引用
The aim of this paper is to derive pointwise global and local best approximation type error estimates for biharmonic problems using theinterior penalty method. The analysis uses the technique of dyadic decompositions of the domain, which is assumed to be a convex polygon. The proofs require local energy estimates and new pointwise Green’s function estimates for the continuous problem which has independent interest. References