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  • Author or Editor: L. Mutafchiev x
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Abstract  

Let Y s,n denote the number of part sizes ≧ s in a random and uniform partition of the positive integer n that are counted without multiplicity. For s = λ(6n)1/2/π + o(n 1/4), 0 ≦ λ < ∞, as n → ∞, we establish the weak convergence of Y s,n to a Gaussian distribution in the form of a central limit theorem. The mean and the standard deviation are also asymptotically determined.

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Abstract  

We study the asymptotic behaviour of the trace (the sum of the diagonal parts) τ n = τ n(ω) of a plane partition ω of the positive integer n, assuming that ω is chosen uniformly at random from the set of all such partitions. We prove that (τ nc 0 n 2/3)/c 1 n 1/3 log1/2 n converges weakly, as n → ∞, to the standard normal distribution, where c 0 = ζ(2)/ [2ζ(3)]2/3, c 1 = √(1/3/) [2ζ(3)]1/3 and ζ(s) = Σj=1 j s.

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