Links

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.

Original languageEnglish
Pages (from-to)3623-3651
Number of pages29
JournalBernoulli
Volume25
Issue number4B
Early online date25 Sep 2019
DOIs
StatePublished - Nov 2019

    Research areas

  • GEM distribution, interleaving of simple point processes, residual allocation model, stars and bars duality, stationary renewal process, Yule process, EMPTY BOXES, BRANCHING-PROCESSES, NUMBER, Stationary renewal process, Residual allocation model, Interleaving of simple point processes, Stars and bars duality

    Scopus subject areas

  • Statistics and Probability

ID: 47509206