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Note on polynomial approximation of monomials and diophantine approximation

✍ Scribed by D.S Lubinsky


Book ID
107776924
Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
278 KB
Volume
43
Category
Article
ISSN
0021-9045

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Another Note on Polynomial vs Rational A
✍ Boris Shekhtman πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 221 KB

Let E be a subspace of C(X) and let R(E)= gΓ‚h: 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