Journal
PHYSICAL REVIEW LETTERS
Volume 85, Issue 21, Pages 4633-4636Publisher
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.85.4633
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The model of growing networks with the preferential attachment of new links is generalized to include initial attractiveness of sites. We find the exact form of the stationary distribution of the number of incoming links of sites in the limit of long times, P(q), and the long-time limit of the average connectivity (q) over bar (s, t) of a site s at time t (one site is added per unit of time). At long times, P(q) similar to q(-gamma) at q --> infinity and (q) over bar (s, t) similar to (s/t)(-beta) at s/t --> 0, where the exponent gamma varies from 2 to infinity depending on the initial attractiveness of sites. We show that the relation beta(gamma - 1) = 1 between the exponents is universal.
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