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On general models of complex networks with some applications

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2 Author(s)
Wenjun Xiao ; Sch. of Software Eng., South China Univ. of Technol., Guangzhou, China ; Limin Peng

Barabasi and Albert find that many large networks exhibit a scale-free power-law distribution of vertex degrees. We show that when vertex degrees of large networks follow a scale-free power-law distribution with the exponent gamma ges 2, the number of degree-1 vertices, when nonzero, is of the same order as the network size N and that the average degree is of order less than log N. Furthermore, let nk be the number of degree-k vertices. In this paper we prove that n1 must be divisible by the least common multiple of kgamma 1, kgamma 2,..., kgamma l, where 1 = k1 < k2 <...> kl is the degree sequence of the network. Then we construct a general model of networks of scale-free and obtain some detail properties on scale-free and small-world networks. Our method has the benefit of relying on conditions that are static and easily verified. They are verified by many experimental results of diverse real networks and have comprehensive applications to social, natural and synthetic systems.

Published in:

Web Society, 2009. SWS '09. 1st IEEE Symposium on

Date of Conference:

23-24 Aug. 2009

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