Central limit theorems for general transportation costs
Central limit theorems for general transportation costs
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一般运输成本的中心极限定理
DOI:
10.1214/22-aihp1356
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Jean
中科院分区:
文献类型:
--
作者:
E. Barrio;Alberto González;Jean
We consider the problem of optimal transportation with general cost between a empirical measure and a general target probability on R d , with d $\ge$ 1. We extend results in [19] and prove asymptotic stability of both optimal transport maps and potentials for a large class of costs in R d. We derive a central limit theorem (CLT) towards a Gaussian distribution for the empirical transportation cost under minimal assumptions, with a new proof based on the Efron-Stein inequality and on the sequential compactness of the closed unit ball in L 2 (P) for the weak topology. We provide also CLTs for empirical Wassertsein distances in the special case of potential costs | $\bullet$ | p , p>1.