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zbMath0578.41039MaRDI QIDQ3700217

Publication date: 1984

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

Banach algebras semiprojection semi-ideals best approximation map semi-idealoids

Mathematics Subject Classification ID

Geometry and structure of normed linear spaces (46B20) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Topological algebras, normed rings and algebras, Banach algebras (46H99)

Related Items (4)

Lipschitzian selections in approximation from nonconvex sets of bounded functions ⋮ Lipschitzian selections in best approximation by continuous functions ⋮ Uniform approximation by a non-convex cone of continuous functions ⋮ The existence of linear selection and the quotient lifting property

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