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arXiv 1902.08057math.NAcs.NA
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关于Rayleigh-Ritz和精炼投影方法中余量范数的分析

On Residual norms in the Rayleigh-Ritz and refined Projection methods

Indian Institute of Science(印度科学学院)

Mashetti Ravibabu

AI总结:

本文研究问题为余量范数比值的界限分析,核心方法为使用最小二乘和线搜索投影方法,主要贡献为提出计算成本更低且能评估精炼与Rayleigh-Ritz投影方法优劣的界限。

摘要:

本文推导了精炼和Rayleigh-Ritz投影方法中余量范数比值的界限。为此,它使用了在[6]中提出的最小二乘和线搜索投影方法。本文推导的界限计算成本更低。进一步,它在实践中有助于评估精炼和Rayleigh-Ritz投影方法之间的优劣。

英文摘要:

This paper derives bounds for the ratio of residual norms in the refined and Rayleigh- Ritz projection methods. To do this, it uses the Least squares and line search projection method proposed in [6]. The bound derived in this paper is less costly to compute. Further, it is practically useful to assess the superiority of the refined and the Rayleigh-Ritz projection methods one over the other.

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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