Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2003-11-28
Eur. Phys. J. B 38, 205 (2004)
Physics
Condensed Matter
Disordered Systems and Neural Networks
5 pages, 2 figures. To appear in EPJB
Scientific paper
10.1140/epjb/e2004-00038-8
We analyze the degree distribution's cut-off in finite size scale-free networks. We show that the cut-off behavior with the number of vertices $N$ is ruled by the topological constraints induced by the connectivity structure of the network. Even in the simple case of uncorrelated networks, we obtain an expression of the structural cut-off that is smaller that the natural cut-off obtained by means of extremal theory arguments. The obtained results are explicitly applied in the case of the configuration model to recover the size scaling of tadpoles and multiple edges.
Boguñá Marián
Pastor-Satorras Romualdo
Vespignani Alessandro
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