Mathematics – Probability
Scientific paper
2011-08-26
Mathematics
Probability
29 pages
Scientific paper
We provide rates of convergence to the asymptotic distribution of the (properly scaled) degree of a fixed vertex in two preferential attachment random graph models. Our approach is to show that these distributions are unique fixed points of a certain distributional transformation that allows us to obtain rates of convergence using a new variation of Stein's method. Despite the large literature on these models, there is surprisingly little known about the limiting distributions so we also provide some properties and new representations including an explicit expression for the densities in terms of the confluent hypergeometric function of the second kind.
Peköz Erol A.
Röllin Adrian
Ross Nathan
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