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arXiv 1709.02790math.OC
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双调和距离与随机扰动下二阶一致性网络的性能

Biharmonic Distance and the Performance of Second-Order Consensus Networks with Stochastic Disturbances

Yuhao Yi, Bingjia Yang, Zhongzhi Zhang, Stacy Patterson

摘要:

研究了具有随机加性扰动的二阶一致动力学.我们研究了三种不同的性能指标:顶点状态之间的成对差异的稳态方差,每个顶点状态的平均偏差的稳态方差,以及系统的总稳态方差。我们发现,这些性能指标是密切相关的双谐波距离的平方的双谐波距离发挥类似的作用,在系统性能的电阻距离发挥在一阶噪声共识动力学的性能。基于双调和距离,我们进一步定义了双调和Kirchhoff指数和顶点中心度的新概念。最后,我们推导出分析结果的性能指标和概念的完全图,星图,周期和路径,我们用这种分析来比较的渐近行为的稳定方差在一阶和二阶系统。

英文摘要:

We study second order consensus dynamics with random additive disturbances. We investigate three different performance measures: the steady-state variance of pairwise differences between vertex states, the steady-state variance of the deviation of each vertex state from the average, and the total steady-state variance of the system. We show that these performance measures are closely related to the biharmonic distance; the square of the biharmonic distance plays similar role in the system performance as resistance distances plays in the performance of first-order noisy consensus dynamics. We further define the new concepts of biharmonic Kirchhoff index and vertex centrality based on the biharmonic distance. Finally, we derive analytical results for the performance measures and concepts for complete graphs, star graphs, cycles, and paths, and we use this analysis to compare the asymptotic behavior of the steady-variance in first- and second-order systems.

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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