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arXiv 2004.07825physics.soc-phnlin.AO
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$r$ - $K$平面中的网络重新布线

Network rewiring in the $r$-$K$ plane

M. L. Bertotti, G. Modanese

摘要:

我们通过一个新的重新布线算法,它允许调整的纽曼折射率系数$r$和最近的邻居$K$(在范围$-1\le r \le 1$,$K\ge \langle k \rangle$)的平均程度生成相关的无标度网络的配置模型。在每个尝试的重新布线步骤中,都会计算局部变化$Δr$和$ΔK$,然后根据标准Metropolis概率$ \exp(\pmΔr/T)$接受该步骤,其中$T$是可变温度。我们证明了$Δr$和$ΔK$之间的一般关系,从而找到了两个变量之间的连接有非常不同的定义和拓扑意义。我们描述重新布线轨迹的$r$ - $K$平面和探索的限制,最大的不对称和dispertative网络,包括小的最小程度($k_{min} \ge 1$),以前没有被考虑的情况下。在重布线过程中,监控了巨分支的大小和网络的熵。证明了分支近似$\bar{z}_{2,B}$中的第二邻居的平均数在重新布线时是常数,并且与马尔可夫网络的相关性无关。然而,作为度的函数,第二邻居的数量给出了关于网络连通性的有用信息,并且也被监视。

英文摘要:

We generate correlated scale-free networks in the configuration model through a new rewiring algorithm which allows to tune the Newman assortativity coefficient $r$ and the average degree of the nearest neighbors $K$ (in the range $-1\le r \le 1$, $K\ge \langle k \rangle$). At each attempted rewiring step, local variations $Δr$ and $ΔK$ are computed and then the step is accepted according to a standard Metropolis probability $ \exp(\pmΔr/T)$, where $T$ is a variable temperature. We prove a general relation between $Δr$ and $ΔK$, thus finding a connection between two variables which have very different definitions and topological meaning. We describe rewiring trajectories in the $r$-$K$ plane and explore the limits of maximally assortative and disassortative networks, including the case of small minimum degree ($k_{min} \ge 1$) which has previously not been considered. The size of the giant component and the entropy of the network are monitored in the rewiring. The average number of second neighbours in the branching approximation $\bar{z}_{2,B}$ is proven to be constant in the rewiring, and independent from the correlations for Markovian networks. As a function of the degree, however, the number of second neighbors gives useful information on the network connectivity and is also monitored.

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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