Phase transition on the degree sequence of a random graph process with vertex copying and deletion

Phase transition on the degree sequence of a random graph process with vertex copying and deletion
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具有顶点复制和删除的随机图过程度序列的相变

DOI:
10.1016/j.spa.2010.12.008
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发表时间:
2011-04
影响因子:
1.4
通讯作者:
Wu, Xian-Yuan
Wu, Xian-Yuan
中科院分区:
数学3区
文献类型:
--
作者:
Cai, Kai-Yuan;Dong, Zhao;Liu, Ke;Wu, Xian-Yuan

文献摘要

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本文研究了具有复制和顶点删除的随机图过程的度序列。一个相变被揭示为:当复制严格优于删除时,模型具有幂律度序列;当删除严格优于复制时,它具有指数度序列;否则,模型具有一个中间度分布,衰减为e-ck。请注意,由于复制,模型的边数可能会超线性增长,并且模型可能表现出具有任何大于1的指数的幂律。
This paper focuses on the degree sequence of a random graph process with copying and vertex deletion. A phase transition is revealed as the following: when copying strictly dominates deletion, the model possesses a power law degree sequence; and when deletion strictly dominates copying, it possesses an exponential one; otherwise, the model possesses an intermediate degree distribution which decays as e−ck. Note that, due to copying, the edge number of the model may grow super-linearly and the model may exhibit a power law with any exponent greater than 1.
DOI: --
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