An application of the discrete Lotka–Volterra system with variable step-size to singular value computation

An application of the discrete Lotka–Volterra system with variable step-size to singular value computation
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DOI:
10.1088/0266-5611/20/2/015
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发表时间:
2004
期刊:
影响因子:
2.1
通讯作者:
Masashi Iwasaki;Yoshimasa Nakamura
Masashi Iwasaki;Yoshimasa Nakamura
中科院分区:
数学2区
文献类型:
--
作者:
Masashi Iwasaki;Yoshimasa Nakamura

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将变步长离散Lotka-Volterra系统应用于计算奇异值的数值算法。设计了一种新的可积奇异值分解算法,其中步长δ是一个逐步参数δ(n).一些例子表明,一个更好的选择的步长提供了一个好处,在收敛速度和数值精度。
The discrete Lotka–Volterra system with variable step-size is applied to a numerical algorithm for computing singular values. A new version of integrable singular value decomposition algorithm is designed, where the step-size δ is then a stepwise parameter δ(n). Some examples demonstrate that a better choice of the step-size gives a benefit in both convergence speed and numerical accuracy.