Network model of deviation from power-law distribution in complex network

Deviation from simple power law is widely observed in complex networks. We introduce a model including possible mechanisms leading to the deviation. In this model, probabilistic addition of nodes and links, as well as rewiring of links are considered. Using master equation, through theoretical calculation and numerical simulation, double power laws with one variable and one constant exponent are obtained. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011