De Branges type lemma and approximation in weighted spaces (Q2028561)
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scientific article; zbMATH DE number 7353310
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | De Branges type lemma and approximation in weighted spaces |
scientific article; zbMATH DE number 7353310 |
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De Branges type lemma and approximation in weighted spaces (English)
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1 June 2021
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Some generalizations of de Branges lemma for weighted spaces are given, and different approximation theorems in weighted spaces for algebras, vector subspaces or convex cones are obtained.
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Nachbin family
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weighted space
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radon measure
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dual space
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polar set
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extreme point
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convex cone
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ordered ideal
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antisymmetric set with respect to an algebra
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antisymmetric set with respect to a pair \((\mathcal{M},\mathcal{W})\) or \((\mathcal{C}, \mathcal{M})\)
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antialgebraic set with respect to a pair \((\mathcal{M},\mathcal{W})\)
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