基于区域分解的椭圆型问题预处理器中区域边界算子的谱分析

Spectral analysis of the domain boundary operator contained in preconditioners for elliptic problems by domain decomposition

研究基于区域分解的求解椭圆型问题的预处理器的性质．对Ｂｒａｍｂｌｅ的边界算子做了详尽的谱分析及进一步的改进，改进了他的结果．

In this paper, the properties of preconditioners for elliptic problems by domain decomposition is considered, the spectral analysis and improvement for the domain boundary operator defined by J. H. Bramble et al are done. The result given by Bramle et al is improved.