Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2003-03-26
Physical Review E 66, 016125 (2002)
Physics
Condensed Matter
Statistical Mechanics
six pages, including 5 figures, RevTex 4 format
Scientific paper
10.1103/PhysRevE.66.016125
The statistical property of a growing scale-free network is studied based on an earlier model proposed by Krapivsky, Rodgers, and Redner [Phys. Rev. Lett. 86, 5401 (2001)], with the additional constraints of forbidden of self-connection and multiple links of the same direction between any two nodes. Scaling exponents in the range of 1-2 are obtained through Monte Carlo simulations and various clustering coefficients are calculated, one of which, $C_{\rm out}$, is of order $10^{-1}$, indicating the network resembles a small-world. The out-degree distribution has an exponential cut-off for large out-degree.
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