Time-delay version of the integrable discrete Lotka-Volterra system in terms of the LR transformations

Time-delay version of the integrable discrete Lotka-Volterra system in terms of the LR transformations
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可积离散 Lotka-Volterra 系统在 LR 变换方面的时滞版本

DOI:
10.1088/2633-1357/ac1cd4
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发表时间:
2021
期刊:
影响因子:
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通讯作者:
Emiko Ishiwata
Emiko Ishiwata
中科院分区:
--
文献类型:
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作者:
Masaki Sekiguchi;Kurumi Oka;Masashi Iwasaki;Emiko Ishiwata

文献摘要

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为了将时间延迟引入可积离散系统,我们提出了离散 Lotka-Volterra (dLV) 系统的时间延迟版本,它是著名的捕食者-被捕食者 Lotka-Volterra 系统的时间离散化。 LR 变换是为解决对称特征值问题而设计的,它在推导原始 dLV 系统的基本属性方面发挥着关键作用。我们还阐明了所得时滞系统中的渐近收敛性,并提出了计算矩阵特征值和奇异值的应用程序。
To introduce time delay into integrable discrete systems, we present a time-delay version of the discrete Lotka-Volterra (dLV) system, which is a time-discretization of the famous predator-prey Lotka-Volterra system. Focusing on the LR transformations, which has been designed for solving symmetric eigenvalue problems, plays a key role in deriving the essential properties of the original dLV system. We also clarify asymptotic convergence in the resulting time-delay system and present an application for computing matrix eigenvalues and singular values.