Nonuniform Estimates in the Conditional Central Limit Theorem
Landers, Dieter ; Rogge, Lothar
Ann. Probab., Tome 15 (1987) no. 4, p. 776-782 / Harvested from Project Euclid
Let $X_n, n \in \mathbb{N}$, be i.i.d. with mean 0, variance 1, and $E(|X_1|^r) < \infty$ for some $r > 3$. Let $B$ be a measurable set such that its distances from the $\sigma$ fields $\sigma (X_1,\ldots, X_n)$ are of order $O(n^{-1/2} (\log n)^{-r/2})$. We prove that for such $B$ the conditional probabilities $P(n^{-1/2}\sum^n_{i=1} X_i \leq t\mid B)$ can be approximated by the standard normal distribution $\Phi (t)$ up to the classical nonuniform bound $(1 + |t|^r)^{-1} n^{-1/2}$. An example shows that this is not true any more if the distances of $B$ from $\sigma (X_1,\ldots, X_n)$ are only of order $O(n^{-1/2}(\log n)^{-r/2+\varepsilon})$ for some $\varepsilon > 0$. For the case $r = 3$ one can obtain the corresponding assertion only under a strengthened assumption.
Publié le : 1987-04-14
Classification:  Nonuniform bounds,  conditional central limit theorem,  independent and identically distributed random variables,  60E15,  60F05
@article{1176992171,
     author = {Landers, Dieter and Rogge, Lothar},
     title = {Nonuniform Estimates in the Conditional Central Limit Theorem},
     journal = {Ann. Probab.},
     volume = {15},
     number = {4},
     year = {1987},
     pages = { 776-782},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1176992171}
}
Landers, Dieter; Rogge, Lothar. Nonuniform Estimates in the Conditional Central Limit Theorem. Ann. Probab., Tome 15 (1987) no. 4, pp.  776-782. http://gdmltest.u-ga.fr/item/1176992171/