Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2002-10-03
Nucl. Phys. B 653, 307 (2003)
Physics
Condensed Matter
Statistical Mechanics
24 pages, 5 figures
Scientific paper
10.1016/S0550-3213(02)01119-7
We propose a consistent approach to the statistics of the shortest paths in random graphs with a given degree distribution. This approach goes further than a usual tree ansatz and rigorously accounts for loops in a network. We calculate the distribution of shortest-path lengths (intervertex distances) in these networks and a number of related characteristics for the networks with various degree distributions. We show that in the large network limit this extremely narrow intervertex distance distribution has a finite width while the mean intervertex distance grows with the size of a network. The size dependence of the mean intervertex distance is discussed in various situations.
Dorogovtsev S. N.
Mendes Jose Fernando F.
Samukhin A. N.
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