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Algebraic Polynomials with Random Coefficients with Binomial and Geometric Progressions
Joint Authors
Farahmand, Kambiz
Sambandham, M.
Source
Journal of Applied Mathematics and Stochastic Analysis
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-04-07
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The expected number of real zeros of an algebraic polynomial ao+a1x+a2x2+⋯+anxn with random coefficient aj,j=0,1,2,…,n is known.
The distribution of the coefficients is often assumed to be identical albeit allowed to have different classes of distributions.
For the nonidentical case, there has been much interest where the variance of the jth coefficient is var (aj)=(nj).
It is shown that this class of polynomials has significantly more zeros than the classical algebraic polynomials with identical coefficients.
However, in the case of nonidentically distributed coefficients it is analytically necessary to assume that the means of coefficients are zero.
In this work we study a case when the moments of the coefficients have both binomial and geometric progression elements.
That is we assume E(aj)=(nj)μj+1 and var (aj)=(nj)σ2j.
We show how the above expected number of real zeros is dependent on values of σ2 and μ in various cases.
American Psychological Association (APA)
Farahmand, Kambiz& Sambandham, M.. 2009. Algebraic Polynomials with Random Coefficients with Binomial and Geometric Progressions. Journal of Applied Mathematics and Stochastic Analysis،Vol. 2009, no. 2009, pp.1-6.
https://search.emarefa.net/detail/BIM-493627
Modern Language Association (MLA)
Farahmand, Kambiz& Sambandham, M.. Algebraic Polynomials with Random Coefficients with Binomial and Geometric Progressions. Journal of Applied Mathematics and Stochastic Analysis No. 2009 (2009), pp.1-6.
https://search.emarefa.net/detail/BIM-493627
American Medical Association (AMA)
Farahmand, Kambiz& Sambandham, M.. Algebraic Polynomials with Random Coefficients with Binomial and Geometric Progressions. Journal of Applied Mathematics and Stochastic Analysis. 2009. Vol. 2009, no. 2009, pp.1-6.
https://search.emarefa.net/detail/BIM-493627
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-493627