A two-dimensional Hahn-Banach theorem

DOI10.1090/S0002-9939-00-05944-XzbMath0971.46006OpenAlexW1889593896MaRDI QIDQ4523194

Bruce L. Chalmers, Boris Shekhtman

Publication date: 8 January 2001

Published in: Proceedings of the American Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1090/s0002-9939-00-05944-x

zbMATH Keywords

Hahn-Banach theoremoperator extensionminimal normstrictly convex balltwo-dimensional subspacesmooth ball

Mathematics Subject Classification ID

Geometry and structure of normed linear spaces (46B20) Dilations, extensions, compressions of linear operators (47A20)

Related Items (3)

Hahn-Banach operators ⋮ Multidimensional linear functional connected with double strong Cesàro summability ⋮ Minimal numerical-radius extensions of operators

Cites Work

• Unnamed Item
• Actions that characterize \(l_\infty^{(n)}\)
• The Determination of Minimal Projections and Extensions in L 1
• Strictly Convex Normed Linear Spaces
• $L_1$ contains every two-dimensional normed space

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