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Richard Askey

Researcher at University of Wisconsin-Madison

Publications -  154
Citations -  8328

Richard Askey is an academic researcher from University of Wisconsin-Madison. The author has contributed to research in topics: Orthogonal polynomials & Classical orthogonal polynomials. The author has an hindex of 41, co-authored 154 publications receiving 8012 citations. Previous affiliations of Richard Askey include Northwestern University & Pennsylvania State University.

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Hausdorff's moment problem and expansions in Legendre polynomials☆

TL;DR: In this paper, a new proof for Hausdorff's condition on a set of moments which determines when the function generating these moments is in L 2 is given, using Legendre polynomials and their discrete extensions found by Tchebychef.
Journal ArticleDOI

Jacobi polynomial expansions with positive coefficients and imbeddings of projective spaces

TL;DR: In this article, Schoenberg's work is used to prove a conjecture about when a Jacobi polynomial Pn(x) can be expanded in terms of another Px) with nonnegative coefficients.
Journal ArticleDOI

The q-harmonic oscillator and an analog of the Charlier polynomials

TL;DR: A model of a q-harmonic oscillator based on q-Charlier polynomials of Al-Salam and Carlitz is discussed in this paper, where simple explicit realization of q-creation and q-annihilation operators, q-coherent states and an analog of the Fourier transformation are found.
Book ChapterDOI

Vietoris’s Inequalities and Hypergeometric Series

TL;DR: The inequalities of Vietoris have been a good source of problems and new results as mentioned in this paper, and a hypergeometric sum suggested by one of the problems is evaluted in this paper.