On the Third and Fourth Zolotarev Problems in the Complex Plane

DOI10.1137/0732009zbMath0815.30027OpenAlexW2032298889MaRDI QIDQ4326870

M.-P. Istace, Jean-Philippe Thiran

Publication date: 27 June 1995

Published in: SIAM Journal on Numerical Analysis (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1137/0732009

zbMATH Keywords

Chebyshev approximationcomplex rational functionsoptimal ADI parameterscomplex rational Zolotarev problems

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Approximation in the complex plane (30E10) Iterative numerical methods for linear systems (65F10) Approximation by rational functions (41A20)

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On the generalized ADI method for the matrix equation \(X- AXB\)=\(C\) ⋮ Trail to a Lyapunov equation solver ⋮ Chebyshev-Blaschke products: solutions to certain approximation problems and differential equations ⋮ Polynomials Versus Finite Blaschke Products

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