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On the asymptotic behaviour of the probability of existence of equivalent tuples with nontrivial structure in a random sequence

  • V. G. Mikhailov
Published/Copyright: December 9, 2008
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Discrete Mathematics and Applications
From the journal Volume 18 Issue 6

Abstract

In a long enough sequence of discrete random variables, as a rule, an s-tuple exists of nontrivial structure, that is, a tuple with at least one repeated symbol. We consider the case where the sequence consists of n + s – 1 independent random variables taking the values 1, …, N with equal probabilities. It is shown that as n → ∞, ns3N–2 → 0 the probability of that in the sequence s-tuples exist with the same nontrivial structure is equal to 1 – (1 + n/N)se–sn/N (1 + o(1)).

Received: 2006-11-28
Revised: 2008-09-15
Published Online: 2008-12-09
Published in Print: 2008-December

© de Gruyter 2008

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