Computation of Generalized Matrix Functions

Computation of Generalized Matrix Functions
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广义矩阵函数的计算

DOI:
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发表时间:
2015
影响因子:
1.5
通讯作者:
C. Fenu
C. Fenu
中科院分区:
数学2区
文献类型:
--
作者:
F. Arrigo;M. Benzi;C. Fenu

文献摘要

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我们开发数值算法来有效评估与广义矩阵函数相关的数量 [J. B. Hawkins 和 A. Ben-Israel,线性和多重线性代数 1(2),1973,第 163-171 页]。我们的算法基于高斯求积和 Golub-Kahan 双对角化。还研究了块变体。进行数值实验是为了说明我们的技术在计算网络分析中产生的广义矩阵函数方面的有效性和效率。
We develop numerical algorithms for the efficient evaluation of quantities associated with generalized matrix functions [J. B. Hawkins and A. Ben-Israel, Linear and Multilinear Algebra 1(2), 1973, pp. 163-171]. Our algorithms are based on Gaussian quadrature and Golub--Kahan bidiagonalization. Block variants are also investigated. Numerical experiments are performed to illustrate the effectiveness and efficiency of our techniques in computing generalized matrix functions arising in the analysis of networks.