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arXiv math/9907037math.CO
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随机游动与随机置换

Random walks and random permutations

P. J. Forrester

摘要:

恶性步行者的随机转弯模型与由其递增子序列索引的随机排列之间建立了联系。因此,可以确定模型的特定不对称版本中的最大位移的缩放分布与GUE的软边缘处的特征值的缩放分布相同。分布的缩放给出了$t$时间步长后的最大平均位移$μ$为$μ= (2t)^{1/2}$,标准差与$μ^{1/3}$成比例。指数1/3是一类典型的二维增长问题。

英文摘要:

A connection is made between the random turns model of vicious walkers and random permutations indexed by their increasing subsequences. Consequently the scaled distribution of the maximum displacements in a particular asymmeteric version of the model can be determined to be the same as the scaled distribution of the eigenvalues at the soft edge of the GUE. The scaling of the distribution gives the maximum mean displacement $μ$ after $t$ time steps as $μ= (2t)^{1/2}$ with standard deviation proportional to $μ^{1/3}$. The exponent 1/3 is typical of a large class of two-dimensional growth problems.

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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