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arXiv 0901.1733math.COmath.PR
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对称群上随机变量的分布

Distribution of Random Variables on the Symmetric Group

Vytas Zacharovas

摘要:

著名的Erdos-Turan定律指出,随机置换的阶的对数是渐近正态分布的。本文的目的是估计这个定理的收敛速度,并证明了随机置换的阶的对数在对称群的某类子集上的分布的类似结果。我们还研究了对称群上乘性函数均值的渐近性态,所得结果除了可用于研究Erdos-Turan定律中的余项外,还具有独立的意义.我们还研究了随机多项式分裂域的次数分布的一个相关问题,并得到了它收敛于正规律的收敛速度的精确估计。在研究中,我们采用概率和分析方法。这里使用的一些分析方法起源于概率数论,而另一些则起源于发散级数的求和理论。其中一种方法是利用发散级数Voronoi可和性的Tauberian型估计来分析乘性函数均值的母函数。

英文摘要:

The well known Erdos-Turan law states that the logarithm of an order of a random permutation is asymptotically normally distributed. The aim of this work is to estimate convergence rate in this theorem and also to prove analogous result for distribution of the logarithm of an order of a random permutation on a certain class of subsets of the symmetric group. We also study the asymptotic behavior of the mean values of multiplicative functions on the symmetric group and the results we obtain are of independent interest besides their application to the investigation of the remainder term in the Erdos-Turan law. We also study a related problem of distribution of the degree of a splitting field of a random polynomial and obtain sharp estimates for its convergence rate to normal law. In research we apply both probabilistic and analytic methods. Some analytic methods used here have their origins in the probabilistic number theory, and some have their roots in the theory of summation of divergent series. One of the approaches we use is to apply Tauberian type estimates for Voronoi summability of divergent series to analyze the generating functions of the mean values of multiplicative functions.

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