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arXiv 1111.0921nlin.CDmath.DSnlin.AOnlin.PSnlin.SI
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模块网络中相位振荡器的分级同步

Hierarchical Synchrony of Phase Oscillators in Modular Networks

Per Sebastian Skardal, Juan G. Restrepo

摘要:

研究了具有模块结构且每个社区中有大量振荡器的网络上正弦耦合相位振荡器的同步问题。特别感兴趣的是局部和全局同步的层次,即,社区内部和社区之间的同步性。利用Ott和Antonsen最近的理论,我们发现局域同步的程度可以由一组耦合的低维方程来确定。如果网络中的社区数量很大,也可以找到一个低维的描述全局同步。利用这些结果,我们研究了不同类型的同步之间的分歧。我们发现,根据本地和全球耦合的相对强度,过渡到同步网络中可以调解本地或全球的影响。

英文摘要:

We study synchronization of sinusoidally coupled phase oscillators on networks with modular structure and a large number of oscillators in each community. Of particular interest is the hierarchy of local and global synchrony, i.e., synchrony within and between communities, respectively. Using the recent ansatz of Ott and Antonsen, we find that the degree of local synchrony can be determined from a set of coupled low-dimensional equations. If the number of communities in the network is large, a low-dimensional description of global synchrony can be also found. Using these results, we study bifurcations between different types of synchrony. We find that, depending on the relative strength of local and global coupling, the transition to synchrony in the network can be mediated by local or global effects.

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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