✦ LIBER ✦

Uniqueness of best Chebyshev approximation to nearby functions

✍ Scribed by Charles B. Dunham

Publisher: Springer Netherlands
Year: 1974
Tongue: English
Weight: 187 KB
Volume: 5
Category: Article
ISSN: 0031-5303
DOI: 10.1007/bf02023203

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In contrast to the complex case, the best Chebyshev approximation with respect to a finite-dimensional Haar subspace \(V \subset C(Q)\) ( \(Q\) compact) is always strongly unique if all functions are real valued. However, strong uniqueness still holds for complex valued functions \(f\) with a so-cal

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