Stability and steady state of complex cooperative systems: a diakoptic approach

Stability and steady state of complex cooperative systems: a diakoptic approach
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复杂协作系统的稳定性和稳态:变光方法

DOI:
10.1098/rsos.191090
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发表时间:
2019
影响因子:
3.5
通讯作者:
Greulich P
Greulich P
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Greulich P

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合作动力学在生态学和种群动力学中很常见。然而,它们通常具有高度的复杂性和大量的耦合自由度,使它们难以分析。在这里,我们提出了一个图论的标准,通过diakoptic方法(分而治之),以确定合作系统的稳定性分解成其强连接组件(SCC)系统的依赖图。特别是,我们证明了一个线性合作系统是李雅普诺夫稳定的,如果相关的依赖图的SCC都有非正的主导特征值,如果没有SCC的主导特征值为零是由一个路径连接。
Cooperative dynamics are common in ecology and population dynamics. However, their commonly high degree of complexity with a large number of coupled degrees of freedom renders them difficult to analyse. Here, we present a graph-theoretical criterion, via a diakoptic approach (divide-and-conquer) to determine a cooperative system’s stability by decomposing the system’s dependence graph into its strongly connected components (SCCs). In particular, we show that a linear cooperative system is Lyapunov stable if the SCCs of the associated dependence graph all have non-positive dominant eigenvalues, and if no SCCs which have dominant eigenvalue zero are connected by a path.
DOI: --
发表时间: 1978
期刊:
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