On a functional equation related to the Ptolemaic inequality

DOI10.1007/BF01830679zbMath0658.39003OpenAlexW2023254414MaRDI QIDQ1111086

Claudi Alsina, Jaime-Luis Garcia-Roig

Publication date: 1987

Published in: Aequationes Mathematicae (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/137247

zbMATH Keywords

normed linear spaceinner product spaceinvolutionPtolemaic inequalitysymmetric bilinear functional

Mathematics Subject Classification ID

Functional equations and inequalities (39B99)

Cites Work

• Eine Charakterisierung der positiv definiten quadratischen Formen
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