Exact solution for the time evolution of network rewiring models

T. S. Evans and A. D. K. Plato
Phys. Rev. E 75, 056101 – Published 2 May 2007

Abstract

We consider the rewiring of a bipartite graph using a mixture of random and preferential attachment. The full mean-field equations for the degree distribution and its generating function are given. The exact solution of these equations for all finite parameter values at any time is found in terms of standard functions. It is demonstrated that these solutions are an excellent fit to numerical simulations of the model. We discuss the relationship between our model and several others in the literature, including examples of urn, backgammon, and balls-in-boxes models, the Watts and Strogatz rewiring problem, and some models of zero range processes. Our model is also equivalent to those used in various applications including cultural transmission, family name and gene frequencies, glasses, and wealth distributions. Finally some Voter models and an example of a minority game also show features described by our model.

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  • Received 1 September 2006

DOI:https://doi.org/10.1103/PhysRevE.75.056101

©2007 American Physical Society

Authors & Affiliations

T. S. Evans and A. D. K. Plato

  • Theoretical Physics, Blackett Laboratory, Imperial College London, London, SW7 2AZ, United Kingdom

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Issue

Vol. 75, Iss. 5 — May 2007

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