关于有向无标度图的一个推广模型

摘要

We study a dynamically evolving directed random graph which randomly adds vertices and directed edges using preferential attachment and prove that its vertice degree obey power law and has elaborate power law exponents.%研究了一个动态的有向随机图演化模型:每个时间步模型随机的加入一个顶点及随机数目条依出、入度择优连接的有向边.证明了该模型出、入度分布服从幂律且具有对称的幂律指数.