Stein's method for normal approximation in Wasserstein distances with application to the multivariate central limit theorem

成果类型:
Article
署名作者:
Bonis, Thomas
署名单位:
Universite Paris Saclay
刊物名称:
PROBABILITY THEORY AND RELATED FIELDS
ISSN/ISSBN:
0178-8051
DOI:
10.1007/s00440-020-00989-4
发表日期:
2020
页码:
827-860
关键词:
摘要:
We use Stein's method to bound the Wasserstein distance of order 2 between a measure nu and the Gaussian measure using a stochastic process (X-t)(t >= 0) such that X-t is drawn from nu for any t > 0. If the stochastic process (X-t)(t >= 0) satisfies an additional exchangeability assumption, we show it can also be used to obtain bounds onWasserstein distances of any order p >= 1. Using our results, we provide convergence rates for the multi-dimensional central limit theorem in terms of Wasserstein distances of any order p >= 2 under simple moment assumptions.
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