arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1806.04700math.PRmath.CV
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带对数圈权的随机置换

Random permutations with logarithmic cycle weights

Nicolas Robles, Dirk Zeindler

摘要:

我们考虑了$\Sn$上的随机置换,其权值为对数增长圈,并研究了当长度$n$趋于无穷大时的渐近行为.我们表明,周期计数过程收敛到一个向量的独立泊松变量,也计算两个过程之间的全变差距离。其次,我们证明了一个关于圈总数的中心极限定理。在此测度下,我们建立了随机置换的Young图的形定理和泛函中心极限定理。我们证明了这些结果使用的工具,从复分析和组合。特别是我们必须应用奇异性分析的方法生成函数的形式$\exp\left( (-\log(1-z))^{k+1} \right)$与$k\geq 1$,尚未在文献中研究。

英文摘要:

We consider random permutations on $\Sn$ with logarithmic growing cycles weights and study asymptotic behavior as the length $n$ tends to infinity. We show that the cycle count process converges to a vector of independent Poisson variables and also compute the total variation distance between both processes. Next, we prove a central limit theorem for the total number of cycles. Furthermore we establish a shape theorem and a functional central limit theorem for the Young diagrams associated to random permutations under this measure. We prove these results using tools from complex analysis and combinatorics. In particular we have to apply the method of singularity analysis to generating functions of the form $\exp\left( (-\log(1-z))^{k+1} \right)$ with $k\geq 1$, which have not yet been studied in the literature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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