The zeros of random polynomials cluster uniformly near the unit circle

被引:44
|
作者
Hughes, C. P. [1 ]
Nikeghbali, A. [2 ]
机构
[1] Univ York, Dept Math, York YO10 5DD, N Yorkshire, England
[2] Univ Zurich, Inst Math, CH-8057 Zurich, Switzerland
基金
英国工程与自然科学研究理事会; 美国国家科学基金会;
关键词
random polynomials; roots; uniform clustering;
D O I
10.1112/S0010437X07003302
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper we deduce a universal result about the asymptotic distribution of roots of random polynomials, which can be seen as a complement to an old and famous result of Erdos and Turan. More precisely, given a sequence of random polynomials, we show that, under some very general conditions, the roots tend to cluster near the unit circle, and their angles are uniformly distributed. The method we use is deterministic: in particular, we do not assume independence or equidistribution of the coefficients of the polynomial.
引用
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页码:734 / 746
页数:13
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