THE LONGEST INCREASING SUBSEQUENCE IN A RANDOM PERMUTATION AND A UNITARY RANDOM MATRIX MODEL

THE LONGEST INCREASING SUBSEQUENCE IN A RANDOM PERMUTATION AND A UNITARY RANDOM MATRIX MODEL
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随机排列和酉随机矩阵模型中的最长递增子序列

DOI:
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发表时间:
1998
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影响因子:
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通讯作者:
K. Johansson
K. Johansson
中科院分区:
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文献类型:
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作者:
K. Johansson

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如果LN是随机置换中最长递增子序列的期望长度,则LN∼2√N as N→∞.利用与一类酉随机矩阵模型的联系,我们给出了这一结果的一个新证明。在Gross和Witten发现的这个模型中,渐近公式与三阶相变直接相关。
If LN is the expected length of the longest increasing subsequence in a randomperm utation, then LN ∼ 2 √ N as N →∞ . We give a new proof of this result using a connection with a certain unitary random matrix model. The asymptotic formula is directly related to a third order phase transition in this model found by Gross and Witten.