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On a number of particles in a marked set of cells in a general allocation scheme

  • Alexey N. Chuprunov EMAIL logo
Published/Copyright: June 18, 2023

Abstract

In a generalized allocation scheme of n particles over N cells we consider the random variable ηn,N(K) which is the number of particles in a given set consisting of K cells. We prove that if n, K, N → ∞, then under some conditions random variables ηn,N(K) are asymptotically normal, and under another conditions ηn,N(K) converge in distribution to a Poisson random variable. For the case when N → ∞ and n is a fixed number, we find conditions under which ηn,N(K) converge in distribution to a binomial random variable with parameters n and s = KN , 0 < K < N, multiplied by a integer coefficient. It is shown that if for a generalized allocation scheme of n particles over N cells with random variables having a power series distribution defined by the function B(β) = ln(1 − β) the conditions n, N, K → ∞, KN s, N = γ ln(n) + o(ln(n)), where 0 < s < 1, 0 < γ < ∞, are satisfied, then distributions of random variables ηn,N(K)n converge to a beta-distribution with parameters and (1 − s)γ.


Originally published in Diskretnaya Matematika (2022) 34, №3, 141–152 (in Russian).


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Received: 2021-08-27
Published Online: 2023-06-18
Published in Print: 2023-06-27

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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