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DOI

This article presents a limit theorem for the gaps Ĝi:n := X n-i+1:n - X n-i:n between order statistics X 1:n≤ · · · ≤ X n:n of a sample of size n from a random discrete distribution on the positive integers (P 1,P 2, . .) governed by a residual allocation model (also called a Bernoulli sieve) P j := H j j-1 i=1 (1 - Hi ) for a sequence of independent random hazard variables Hi which are identically distributed according to some distribution of H ϵ (0, 1) such that -log(1 - H) has a non-lattice distribution with finite mean μlog. As n→∞the finite dimensional distributions of the gaps Ĝ+ i:n converge to those of limiting gaps Gi which are the numbers of points in a stationary renewal process with i.i.d. spacings -log(1-H j ) between times T i-1 and T i of births in a Yule process, that is T i:=Σ i k=1 ek/k for a sequence of i.i.d. exponential variables ϵ k with mean 1. A consequence is that the mean of Ĝ+ i:n converges to the mean of G i, which is 1/(iμ log). This limit theorem simplifies and extends a result of Gnedin, Iksanov and Roesler for the Bernoulli sieve.

Язык оригиналаАнглийский
Страницы (с-по)3623-3651
Число страниц29
ЖурналBernoulli
Том25
Номер выпуска4B
Дата раннего онлайн-доступа25 сен 2019
DOI
СостояниеОпубликовано - ноя 2019

    Предметные области Scopus

  • Теория вероятности и статистика

ID: 47509206