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arXiv 1102.3957math.CAcs.NAmath.NA
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矩阵扇形函数的Padé迭代族的收敛性分析

Convergence analysis of a Padé family of iterations for the matrix sector function

Institute of Applied Mathematics(应用数学研究所);Department of Mathematics and Statistics, University of Regina(里贾纳大学数学与统计系)

Dmitry B. Karp, Minghua Lin

AI总结:

本文通过改进的Schwarz引理,解决了关于矩阵扇形函数Padé迭代族收敛性的一个猜想,并加强了该猜想。

摘要:

本文的主要目的是解决B. Laszkiewicz等人在[A Padé family of iterations for the matrix sector function and the matrix $p$th root, Numer. Linear Algebra Appl. 2009; 16:951-970]中提出的关于矩阵扇形函数Padé迭代族的一个猜想。通过使用Schwarz引理的加强版本,我们还证明了该猜想的强化形式。

英文摘要:

The main purpose of this paper is to give a solution to a conjecture concerning a Padé family of iterations for the matrix sector function that was recently raised by B. Laszkiewicz et al in [A Padé family of iterations for the matrix sector function and the matrix $p$th root, Numer. Linear Algebra Appl. 2009; 16:951-970]. Using a sharpened version Schwarz's lemma, we also demonstrate a strengthening of the conjecture.

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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