On Best Simultaneous Approximation
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Chong Li; G.A Watson
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Article
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1997
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Elsevier Science
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English
โ 258 KB
The problem is considered of best approximation of finite number of functions simultaneously. For a very general class of norms, characterization results are derived. The main part of the paper is concerned with proving uniqueness and strong uniqueness theorems. For a particular subclass, which incl