Continuity of Best Hankel Approximation and Convergence of Near-Best Approximants

DOI10.1137/S0363012992232245zbMath0805.47021MaRDI QIDQ4316289

Xin Li, Charles K. Chui

Publication date: 8 December 1994

Published in: SIAM Journal on Control and Optimization (Search for Journal in Brave)

zbMATH Keywords

rational approximation\(s\)-numbersbounded Hankel operatortruncated Hankel operatorsAdamjun, Arov, and Kreincontinuity of best approximationnear-best Hankel approximants

Mathematics Subject Classification ID

Riesz operators; eigenvalue distributions; approximation numbers, (s)-numbers, Kolmogorov numbers, entropy numbers, etc. of operators (47B06) Toeplitz operators, Hankel operators, Wiener-Hopf operators (47B35) Approximation by rational functions (41A20) Approximation by operators (in particular, by integral operators) (41A35)

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Hankel operators and best Hankel approximation on the half-plane

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