The Lanczos Method with Semi-Definite Inner Product

The Lanczos Method with Semi-Definite Inner Product
复制标题

具有半定内积的 Lanczos 方法

DOI:
--
复制
发表时间:
2001
期刊:
影响因子:
--
通讯作者:
K. Meerbergen
K. Meerbergen
中科院分区:
--
文献类型:
--
作者:
K. Meerbergen

文献摘要

被引文献

相似文献

谱变换Lanczos方法是求解大规模真实的对称广义特征值问题的常用方法。该方法使用一个特殊的内积,使对称Lanczos方法可以使用。有时,必须使用半定内积。这可能导致不稳定和故障。在本文中,我们建议使用隐式重新启动和伪Lanczos方法治疗故障。
The spectral transformation Lanczos method is very popular for solving large scale real symmetric generalized eigenvalue problems. The method uses a special inner product so that the symmetric Lanczos method can be used. Sometimes, a semi-definite inner product must be used. This may lead to instabilities and break-down. In this paper, we suggest cures for breakdown by use of implicit restarting and the pseudo-Lanczos method.