Volume 2006, Issue 1 013980
Research Article
Open Access

Real zeros of random algebraic polynomials with binomial elements

A. Nezakati

A. Nezakati

Faculty of Mathematics, Shahrood University of Technology, P.O. Box 316-36155, Shahrood, Iran

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K. Farahmand

K. Farahmand

Department of Mathematics, University of Ulster, Jordanstown Campus, County Antrim BT37 0QB, United Kingdom

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First published: 10 February 2006
Citations: 1

Abstract

This paper provides an asymptotic estimate for the expected number of real zeros of a random algebraic polynomial a0 + a1x + a2x2 + …+an−1xn−1. The coefficients aj(j = 0, 1, 2, …, n − 1) are assumed to be independent normal random variables with mean zero. For integers m and k = O(log⁡n) 2 the variances of the coefficients are assumed to have nonidentical value , where n = k · m and i = 0, 1, 2, …, m − 1. Previous results are mainly for identically distributed coefficients or when . We show that the latter is a special case of our general theorem.

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