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A modification of the parallelogram law characterization of Hilbert spaces

โœ Scribed by David Ellis


Publisher
Springer-Verlag
Year
1953
Tongue
French
Weight
136 KB
Volume
59
Category
Article
ISSN
0025-5874

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A Nonlinear Characterization of Hilbert
โœ Markus Kunze ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 106 KB

We show that a Banach space is Hilbert if any only if its duality map maps line segments to convex sets.