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arXiv 0712.0882cond-mat.dis-nncond-mat.stat-mech
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无向Kauffman布尔网络中的临界线--渗流的作用

Critical line in undirected Kauffman boolean networks - the role of percolation

Piotr Fronczak, Agata Fronczak

摘要:

我们表明,正确描述的位置的临界线在考夫曼随机布尔网络必须考虑到渗透现象的过程中的损害蔓延。由于无向随机网络中的渗流跃迁问题比有向随机网络中的渗流跃迁问题简单得多,本文研究了无向随机网络中的考夫曼模型。我们导出了这些网络巨组分中临界线的平均场公式,并指出表征整个网络的临界线是由于小团簇的有序行为屏蔽了巨组分的混沌行为。我们还表明了一种可能的态度屏蔽效应的分析描述。本文给出的理论推导与经典随机图的数值模拟结果十分吻合。

英文摘要:

We show that to correctly describe the position of the critical line in the Kauffman random boolean networks one must take into account percolation phenomena underlying the process of damage spreading. For this reason, since the issue of percolation transition is much simpler in random undirected networks, than in the directed ones, we study the Kauffman model in undirected networks. We derive the mean field formula for the critical line in the giant component of these networks, and show that the critical line characterizing the whole network results from the fact that the ordered behavior of small clusters shields the chaotic behavior of the giant component. We also show a possible attitude towards the analytical description of the shielding effect. The theoretical derivations given in this paper quite tally with numerical simulations done for classical random graphs.

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