Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4619087 | Journal of Mathematical Analysis and Applications | 2010 | 12 Pages |
Abstract
Szegő type polynomials with respect to a linear functional M for which the moments M[tn]=μ−n are all complex, μ−n=μn and Dn≠0 for n⩾0, are considered. Here, Dn are the associated Toeplitz determinants. Para-orthogonal polynomials are also studied without relying on any integral representation. Relation between the Toeplitz determinants of two different types of moment functionals are given. Starting from the existence of polynomials similar to para-orthogonal polynomials, sufficient conditions for the existence of Szegő type polynomials are also given. Examples are provided to justify the results.
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