A lower bound for the variance of real zeros of random polynomials
作者:
V. Thangaraj,
N. Renganathan,
期刊:
Stochastic Analysis and Applications
(Taylor Available online 1990)
卷期:
Volume 8,
issue 4
页码: 463-481
ISSN:0736-2994
年代: 1990
DOI:10.1080/07362999008809219
出版商: Marcel Dekker, Inc.
数据来源: Taylor
摘要:
Letbe a random id algebraic polynomial where {ai} is a sequence of independent identically distributed ( iid ) standard normal random variables. In this paper we have obtained a lower bound for the variance of the number of real zeros .of the random algebraic polynomials Qn(x). We have shown that the bound isfor sufficiently large n. Our estimate istimes that of Maslova (1974). We have also presented a graph and a comparison table illustrating the values of variances
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