Central limit theorems for the real zeros of Weyl polynomials
Central limit theorems for the real zeros of Weyl polynomials
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DOI:
10.1353/ajm.2020.0034
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发表时间:
2017-07
影响因子:
1.7
通讯作者:
Yen Q. Do;V. Vu
中科院分区:
文献类型:
--
作者:
Yen Q. Do;V. Vu
Abstract:We establish the central limit theorem for the number of real roots of the Weyl polynomial $P_n(x)=\xi_0+\xi_1 x+\cdots+{1\over\sqrt{n!}}\xi_n x^n$, where $\xi_i$ are iid Gaussian random variables. The main ingredients in the proof are new estimates for the correlation functions of the real roots of $P_n$ and a comparison argument exploiting local laws and repulsion properties of these real roots.