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On nonexistence of strongly unique best approximations

โœ Scribed by Ryszard Smarzewski

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
195 KB
Volume
142
Category
Article
ISSN
0022-247X

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๐Ÿ“œ SIMILAR VOLUMES

On Complex Valued Functions with Strongl
On Complex Valued Functions with Strongly Unique Best Chebyshev Approximation
โœ C. Spagl ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 281 KB

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