Estimates for the strong approximation in multidimensional central limit theorem

Abstract

In a recent paper the author obtained optimal bounds for the strong Gaussian approximation of sums of independent ${\mathbb{R}}^d$-valued random vectors with finite exponential moments. The results may be considered as generalizations of well-known results of Komlós--Major--Tusnády and Sakhanenko. The dependence of constants on the dimension $d$ and on distributions of summands is given explicitly. Some related problems are discussed.

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