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zbMath1087.39516MaRDI QIDQ3374528

Tomasz Szostok

Publication date: 9 March 2006

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

linear spaces Birkhoff-James orthogonality characterization of inner product spaces James orthogonality orthogonal Cauchy equation orthogonal equations Ptolemaic equation

Mathematics Subject Classification ID

Characterizations of Hilbert spaces (46C15) Functional equations for functions with more general domains and/or ranges (39B52) Orthogonal additivity and other conditional functional equations (39B55)

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