Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1154040 | Statistics & Probability Letters | 2008 | 9 Pages |
Abstract
This paper provides an asymptotic formula for the expected number of zeros of a polynomial of the form a0(Ï)+a1(Ï)n11/2x+a2(Ï)n21/2x2+â¯+an(Ï)nn1/2xn for large n. The coefficients {aj(Ï)}j=0n are assumed to be a sequence of independent normally distributed random variables with fixed mean μ and variance one. It is shown that for μ non-zero this expected number is half of that for μ=0. This behavior is similar to that of classical random algebraic polynomials but differs from that of random trigonometric polynomials.
Related Topics
Physical Sciences and Engineering
Mathematics
Statistics and Probability
Authors
K. Farahmand, C.T. Stretch,