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Convergence in Total Variation of Random Sums
Mathematics ( IF 2.3 ) Pub Date : 2021-01-19 , DOI: 10.3390/math9020194 Luca Pratelli , Pietro Rigo
Mathematics ( IF 2.3 ) Pub Date : 2021-01-19 , DOI: 10.3390/math9020194 Luca Pratelli , Pietro Rigo
Let be a sequence of real random variables, a sequence of random indices, and a sequence of constants such that . The asymptotic behavior of , as , is investigated when is exchangeable and independent of . We give conditions for in distribution, where L and M are suitable random variables. Moreover, when is i.i.d., we find constants and such that and for every n. In particular, or in total variation distance provided or , as it happens in some situations.
中文翻译:
随机和的总变异收敛
让 是真正随机变量的序列, 一系列随机索引,以及 一系列常数 。的渐近行为 ,作为 ,何时被调查 可互换且独立于 。我们为 在分布中,其中L和M是合适的随机变量。而且,什么时候 是iid,我们找到常数 和 这样 和 每n个。特别是, 要么 提供的总变化距离 要么 ,因为它在某些情况下会发生。
更新日期:2021-01-19
中文翻译:
随机和的总变异收敛
让