On choices of formulations of computing the generalized singular value decomposition of a large matrix pair
On choices of formulations of computing the generalized singular value decomposition of a large matrix pair
复制标题
大矩阵对广义奇异值分解计算公式的选择
DOI:
10.1007/s11075-020-00984-9
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发表时间:
2019-07
影响因子:
2.1
通讯作者:
Jia Zhongxiao
中科院分区:
文献类型:
--
作者:
Huang Jinzhi;Jia Zhongxiao
For the computation of the generalized singular value decomposition (GSVD) of a large matrix pair (A,B) of full column rank, the GSVD is commonly formulated as two mathematically equivalent generalized eigenvalue problems, so that a generalized eigensolver can be applied to one of them and the desired GSVD components are then recovered from the computed generalized eigenpairs. Our concern in this paper is, in finite precision arithmetic, which generalized eigenvalue formulation is numerically preferable to compute the desired GSVD components more accurately. We make a detailed perturbation analysis on the two formulations and show how to make a suitable choice between them. Numerical experiments illustrate the results obtained.
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影响因子:
1.1
作者:
K. Chu
通讯作者:
K. Chu
影响因子:
14.3
作者:
G. Stewart
通讯作者:
G. Stewart
影响因子:
1.5
作者:
B. Kågström
通讯作者:
B. Kågström
DOI:
--
发表时间:
2017-05
期刊:
arXiv: Numerical Analysis
影响因子:
--
作者:
I. Zwaan;M. Hochstenbach
通讯作者:
I. Zwaan;M. Hochstenbach
影响因子:
1.1
作者:
M. Hochstenbach
通讯作者:
M. Hochstenbach