Quasi-Optimality Constants for Parabolic Galerkin Approximation in Space

Quasi-Optimality Constants for Parabolic Galerkin Approximation in Space
复制标题

空间抛物型伽辽金逼近的拟最优常数

DOI:
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发表时间:
2015
期刊:
European Conference on Numerical Mathematics and Advanced Applications
影响因子:
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通讯作者:
A. Veeser
A. Veeser
中科院分区:
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文献类型:
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作者:
F. Tantardini;A. Veeser

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本文考虑线性抛物型方程初边值问题的Galerkin逼近,其中椭圆算子是对称的,从而诱导出一个能量范数。对于两个相关的变分设置,我们表明,准最优性常数等于稳定常数的L2投影相对于该能量规范。
We consider Galerkin approximation in space of linear parabolic initial-boundary value problems where the elliptic operator is symmetric and thus induces an energy norm. For two related variational settings, we show that the quasi-optimality constant equals the stability constant of the L2-projection with respect to that energy norm.