Master-equation analysis of accelerating networks

Details Master-equation analysis of accelerating networks Master-equation analysis of accelerating networks

2008-10-22

arxiv.org/abs/0810.4119v2

Phys. Rev. E 79, 056101 (2009)

Physics

Physics and Society

6 pages, 1 figure, 1 table

Scientific paper

10.1103/PhysRevE.79.056101

In many real-world networks, the rates of node and link addition are time dependent. This observation motivates the definition of accelerating networks. There has been relatively little investigation of accelerating networks and previous efforts at analyzing their degree distributions have employed mean-field techniques. By contrast, we show that it is possible to apply a master-equation approach to such network development. We provide full time-dependent expressions for the evolution of the degree distributions for the canonical situations of random and preferential attachment in networks undergoing constant acceleration. These results are in excellent agreement with results obtained from simulations. We note that a growing, non-equilibrium network undergoing constant acceleration with random attachment is equivalent to a classical random graph, bridging the gap between non-equilibrium and classical equilibrium networks.

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