The Carathéodory—Fejér Extension of a Finite Geometric Series

DOI10.1093/IMANUM/3.2.221zbMath0525.30030OpenAlexW2003114281MaRDI QIDQ3039663

Martin H. Gutknecht, S. W. Ellacott

Publication date: 1983

Published in: IMA Journal of Numerical Analysis (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1093/imanum/3.2.221

zbMATH Keywords

CF methodBlaschke productHankel matricesChebyshev polynomials of second kindCaratheodory-Fejer theorem

Mathematics Subject Classification ID

Power series (including lacunary series) in one complex variable (30B10) Approximation in the complex plane (30E10) Approximation by rational functions (41A20) Approximation by polynomials (41A10)

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