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Publication:3805230

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zbMath0657.41021MaRDI QIDQ3805230

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Publication date: 1987

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

zbMATH Keywords

metric projection upper semi-continuity lower semi-continuity radial continuity weak semi-continuity Hausdorff semi-continuiy

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65)

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