Let E be a subspace of C(X) and let R(E)= gรh: g, h # E ; h>0]. We make a simple, yet intriguing observation: if zero is a best approximation to f from E, then zero is a best approximation to f from R(E ). We also prove that if That extends the results of P. Borwein and S. Zhou who proved it for t
โฆ LIBER โฆ
On Rational Approximation toe
โ Scribed by Horst Alzer
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 259 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0022-314X
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