A Semicircle Law for Derivatives of Random Polynomials
A Semicircle Law for Derivatives of Random Polynomials
复制标题
随机多项式导数的半圆定律
DOI:
10.1093/imrn/rnaa376
复制
发表时间:
2020
影响因子:
1
通讯作者:
S. Steinerberger
中科院分区:
文献类型:
--
作者:
J. Hoskins;S. Steinerberger
Let $x_1, \dots , x_n$ be $n$ independent and identically distributed real-valued random variables with mean zero, unit variance, and finite moments of all remaining orders. We study the random polynomial $p_n$ having roots at $x_1, \dots , x_n$. We prove that for $\ell \in \mathbb{N}$ fixed as $n \rightarrow \infty $, the $(n-\ell )-$th derivative of $p_n^{}$ behaves like a Hermite polynomial: for $x$ in a compact interval, a suitable rescaling of $p_n^{(n-\ell )}$ starts behaving like the $\ell -$th probabilists’ Hermite polynomial subject to a random shift. Thus, there is a universality phenomenon when differentiating a random polynomial many times: the remaining roots follow a Wigner semicircle distribution.
登录
查看更多内容
影响因子:
1.4
作者:
O’Rourke, Sean;Williams, Noah
通讯作者:
Williams, Noah
影响因子:
2.5
作者:
Gimbutas, Zydrunas;Marshall, Nicholas F.;Rokhlin, Vladimir
通讯作者:
Rokhlin, Vladimir
影响因子:
1
作者:
Steinerberger, Stefan
通讯作者:
Steinerberger, Stefan
DOI:
10.1080/01621459.2020.1758115
发表时间:
2020-05-28
影响因子:
3.7
作者:
Chatterjee, Sourav
通讯作者:
Chatterjee, Sourav