Characterizations of proximinal, semichebychevian and chebychevian subspaces in real normed spaces

DOI10.1080/01630569108816444zbMath0838.46009OpenAlexW2097364499MaRDI QIDQ4009949

Sever Silvestru Dragomir

Publication date: 27 September 1992

Published in: Numerical Functional Analysis and Optimization (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/01630569108816444

zbMATH Keywords

semi-inner productscharacterize proximinal, semi-Chebychevian and Chebychevian subspaces

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Geometry and structure of normed linear spaces (46B20)

Related Items

Two mappings related to semi-inner products and their applications in geometry of normed linear spaces

Cites Work

• Unnamed Item
• The support property of a convex set in a linear normed space
• Reflexive Banach spaces not isomorphic to uniformly convex spaces

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