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arXiv 1109.4451math.DS
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在齐次Kuramoto模型中,稠密网络不存在非零稳定不动点

There are no non-zero Stable Fixed Points for dense networks in the homogeneous Kuramoto model

Richard Taylor

摘要:

研究齐次Kuramoto模型多个稳定不动点解的存在性。本文给出了一般网络Kuramoto模型存在稳定不动点的一个必要条件。应用该条件表明,对于节点度至少为0.9395(n-1)的足够密集的n节点网络,齐次(等频率)模型在范围-Pi至Pi的相位角的整个空间上没有非零稳定的不动点解。这一结果与现有的研究一起证明了Verwoerd和Mason(2007)的一个猜想,即对于完全网络和齐次模型,零不动点有一个由整个空间减去一组测度零组成的吸引区域。通过将这些必要条件应用于Wiley、Strogatz和Girvan(2006)研究的一类正则度网络,我们也检验了它们与充分性的接近程度。

英文摘要:

This paper is concerned with the existence of multiple stable fixed point solutions of the homogeneous Kuramoto model. We develop a necessary condition for the existence of stable fixed points for the general network Kuramoto model. This condition is applied to show that for sufficiently dense n-node networks, with node degrees at least 0.9395(n-1), the homogeneous (equal frequencies) model has no non-zero stable fixed point solution over the full space of phase angles in the range -Pi to Pi. This result together with existing research proves a conjecture of Verwoerd and Mason (2007) that for the complete network and homogeneous model the zero fixed point has a basin of attraction consisting of the entire space minus a set of measure zero. The necessary conditions are also tested to see how close to sufficiency they might be by applying them to a class of regular degree networks studied by Wiley, Strogatz and Girvan (2006).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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