Laplace approximations for sums of independent random vectors
Laplace approximations for sums of independent random vectors
复制标题
独立随机向量之和的拉普拉斯近似
DOI:
10.1007/pl00008727
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发表时间:
2000
影响因子:
2
通讯作者:
Song Liang
中科院分区:
文献类型:
--
作者:
S. Kusuoka;Song Liang
LetXi,i∈N, bei.i.d. B-valued random variables, whereBis a real separable Banach space. LetΦbe a mappingB→R. Under a central limit theorem assumption, an asymptotic evaluation ofZn=E(exp (nΦ(∑i=1nXi/n))), up to a factor (1 +o(1)), has been gotten in Bolthausen [1]. In this paper, we show that the same asymptotic evaluation can be gotten without the central limit theorem assumption.