Circularity of the Error Curve and Sharpness of the CF Method in Complex Chebyshev Approximation

DOI10.1137/0720097zbMath0551.41042OpenAlexW1970221989MaRDI QIDQ3344651

Lloyd N. Threfethen

Publication date: 1983

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

Full work available at URL: https://semanticscholar.org/paper/cae870d1564a7a95c4c58f046c526faa30807ecf

zbMATH Keywords

Carathéodory-Fejér methodnear-circularityrational Chebyshev approximation problem

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Approximation in the complex plane (30E10)

Related Items (3)

On accurate product integration rules for linear fractional differential equations ⋮ On the use of matrix functions for fractional partial differential equations ⋮ Nonuniqueness of best rational Chebyshev approximations on the unit disk

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