Abstract

We investigate an asymptotic behaviour for probabilities of moderate deviations of combinatorial sums of independent random variables having moments of order p > 2. We find zones in which these probabilities are equivalent to the tail of the standard normal law. The width of the zone is a function from the logarithm of a combinatorial variant for Lyapunov’s ratio. The author earlier obtained similar results under Bernstein’s and Linnik’s conditions. The truncations method is used in proofs of the results.

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