Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2002-04-04
Nucl.Phys. B666 (2003) 396-416
Physics
Condensed Matter
Statistical Mechanics
14 pages, an extended version
Scientific paper
10.1016/S0550-3213(03)00504-2
We develop a statistical mechanics approach for random networks with uncorrelated vertices. We construct equilibrium statistical ensembles of such networks and obtain their partition functions and main characteristics. We find simple dynamical construction procedures that produce equilibrium uncorrelated random graphs with an arbitrary degree distribution. In particular, we show that in equilibrium uncorrelated networks, fat-tailed degree distributions may exist only starting from some critical average number of connections of a vertex, in a phase with a condensate of edges.
Dorogovtsev S. N.
Mendes Jose Fernando F.
Samukhin A. N.
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