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arXiv 1210.2002nlin.CD
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延迟耦合延迟振子网络中的幅值死亡

Amplitude death in networks of delay-coupled delay oscillators

Johannes M. Höfener, Gautam C. Sethia, Thilo Gross

摘要:

振幅衰减是一种动力学现象,其中振荡器网络由于耦合而稳定到稳定状态。在这里,我们研究的延迟耦合延迟振子的广义模型中的振幅死亡。我们推导出度齐性网络的分析结果,表明幅度死亡由网络邻接矩阵的某些特征值决定。特别是这些结果表明,在延迟耦合延迟振荡器振幅死亡可以发生任意大的耦合强度k。在这个极限,我们发现一个区域的振幅死亡,这已经发生在小耦合延迟,规模与1/k。我们数值表明,这些结果仍然有效的随机网络与异构度分布。

英文摘要:

Amplitude death is a dynamical phenomenon in which a network of oscillators settles to a stable state as a result of coupling. Here, we study amplitude death in a generalized model of delay-coupled delay oscillators. We derive analytical results for degree homogeneous networks that show that amplitude death is governed by certain eigenvalues of the network's adjacency matrix. In particular these results demonstrate that in delay-coupled delay oscillators amplitude death can occur for arbitrarily large coupling strength k. In this limit we find a region of amplitude death, which occurs already at small coupling delays that scale with 1/k. We show numerically that these results remain valid in random networks with heterogeneous degree distribution.

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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