A characterization of the inner product spaces involving trigonometry

DOI10.15352/AFA/1399899840zbMath1273.46014OpenAlexW2041714394MaRDI QIDQ1947144

Yanyan Li

Publication date: 12 April 2013

Published in: Annals of Functional Analysis (Search for Journal in Brave)

Full work available at URL: http://www.emis.de/journals/AFA/AFA-tex_v4_n1_a10.pdf

zbMATH Keywords

normed spacesinner product spaces

Mathematics Subject Classification ID

Geometry and structure of normed linear spaces (46B20) Characterizations of Hilbert spaces (46C15)

Related Items (5)

Some characterizations of inner product spaces via some geometrical inequalities ⋮ Geometric aspects of \(p\)-angular and skew \(p\)-angular distances ⋮ Bounds for the \(p\)-angular distance and characterizations of inner product spaces ⋮ Extension of Dunkl-Williams inequality and characterizations of inner product spaces ⋮ Characterization of real inner product spaces by Hermite-Hadamard type orthogonalities

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