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arXiv 1405.7877nlin.AO
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通过调整拓扑结构控制群集同步

Controlling cluster synchronization by adapting the topology

Judith Lehnert, Philipp Hövel, Anton Selivanov, Alexander Fradkov, Eckehard Schöll

摘要:

提出了一种自适应控制方案,用于时延耦合网络的零滞后和簇同步控制。基于速度梯度法,我们的计划适应网络的拓扑结构,使目标状态的实现。该方法对不同的初始条件以及耦合参数的变化具有较强的鲁棒性。新兴的拓扑结构的特点是一个微妙的相互作用的兴奋性和抑制性的链接,导致所需的集群状态的稳定。作为决定这种相互作用的关键参数,我们确定了延迟时间。此外,我们展示了如何构建网络,使它们不仅表现出一个给定的集群状态,但也与一个给定的振荡频率。我们应用我们的方法耦合斯图尔特-朗道振荡器,一个范式的正常形式,自然产生的系统接近一个霍普夫分岔的扩展。这种通用模型的成功和鲁棒控制开辟了在物理,化学,技术和生命科学中的广泛系统中的可能应用。

英文摘要:

We suggest an adaptive control scheme for the control of zero-lag and cluster synchronization in delay-coupled networks. Based on the speed-gradient method, our scheme adapts the topology of a network such that the target state is realized. It is robust towards different initial condition as well as changes in the coupling parameters. The emerging topology is characterized by a delicate interplay of excitatory and inhibitory links leading to the stabilization of the desired cluster state. As a crucial parameter determining this interplay we identify the delay time. Furthermore, we show how to construct networks such that they exhibit not only a given cluster state but also with a given oscillation frequency. We apply our method to coupled Stuart-Landau oscillators, a paradigmatic normal form that naturally arises in an expansion of systems close to a Hopf bifurcation. The successful and robust control of this generic model opens up possible applications in a wide range of systems in physics, chemistry, technology, and life science.

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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