论文标题

定量的tracy-widom定律,用于广义Wigner矩阵的最大特征值

Quantitative Tracy-Widom laws for the largest eigenvalue of generalized Wigner matrices

论文作者

Schnelli, Kevin, Xu, Yuanyuan

论文摘要

我们表明,随着矩阵dimension $ n $倾向于无限,任何广义的Wigner矩阵$ h $中最大的特征值的波动汇总到Tracy-Widom法律。我们允许$ h $的条目的差异具有不同的值,但大小具有可比的大小,因此$ \ sum_ {i} \ mathbb {e} | h_ {ij} |^|^2 = 1 $。我们的结果改善了Bourgade [8]的先前速率$ O(N^{ - 2/9})$,证明依赖于第一个长期绿色功能比较定理在边缘附近,而没有第二次匹配限制。

We show that the fluctuations of the largest eigenvalue of any generalized Wigner matrix $H$ converge to the Tracy-Widom laws at a rate nearly $O(N^{-1/3})$, as the matrix dimension $N$ tends to infinity. We allow the variances of the entries of $H$ to have distinct values but of comparable sizes such that $\sum_{i} \mathbb{E}|h_{ij}|^2=1$. Our result improves the previous rate $O(N^{-2/9})$ by Bourgade [8] and the proof relies on the first long-time Green function comparison theorem near the edges without the second moment matching restriction.

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