Abstract
Let F be a symmetric k-dimensional probability distribution, whose characteristic function\(\hat F(t)\) satisfies for allt ∈R k the inequality\(\hat F(t)\) ≥ −1 + α, where 0 < α < 2. Let n be an arbitrary natural number, let Fn be the n-fold convolution of the distribution F with itself, and let e(nF) be the accompanying infinitely divisible distribution with characteristic function exp(n(\(\hat F(t)\) −1)). It is proved that the uniform distance ρ(·,·) between corresponding distribution functions admits estimate ρ(Fn,e(nF))⩽c1(k)(n−1+exp(−nα+cℓkℓn 3 n)), where c1 (k) depends only on the dimension k, while c2 is an absolute constant.
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Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova Akademii Nauk SSSR, Vol. 177, pp. 55–72, 1989.
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Zaitsev, A.Y. Approximation of convolutions of multi-dimensional symmetric distributions by accompanying laws. J Math Sci 61, 1859–1872 (1992). https://doi.org/10.1007/BF01362793
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DOI: https://doi.org/10.1007/BF01362793