Scale-free networks with a large- to hypersmall-world transition

Details Scale-free networks with a large- to hypersmall-world transition Scale-free networks with a large- to hypersmall-world transition

2006-07-05

arxiv.org/abs/cond-mat/0607111v4

Physica A 377, 315-322 (2007)

Physics

Condensed Matter

Disordered Systems and Neural Networks

errors fixed, one new figure, to appear in Physica A

Scientific paper

10.1016/j.physa.2006.11.024

Recently there have been a tremendous interest in models of networks with a power-law distribution of degree -- so called "scale-free networks." It has been observed that such networks, normally, have extremely short path-lengths, scaling logarithmically or slower with system size. As en exotic and unintuitive example we propose a simple stochastic model capable of generating scale-free networks with linearly scaling distances. Furthermore, by tuning a parameter the model undergoes a phase transition to a regime with extremely short average distances, apparently slower than log log N (which we call a hypersmall-world regime). We characterize the degree-degree correlation and clustering properties of this class of networks.

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