scientific article; zbMATH DE number 1014796

zbMath0949.39011MaRDI QIDQ4338492

Palaniappan Kannappan

Publication date: 18 August 1997

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

zbMATH Keywords

functional equationsnormed linear spaceinner product spaceadditive functionbilinear functionbiadditive functionFréchet characterizationsJordan characterizationvon Neumann characterization

Mathematics Subject Classification ID

Functional equations for real functions (39B22) Characterizations of Hilbert spaces (46C15) Functional equations for functions with more general domains and/or ranges (39B52) Quadratic and bilinear forms, inner products (15A63)

Related Items (5)

Unnamed Item ⋮ A variant of a generalized quadratic functional equation on groups ⋮ New pexiderizations of Drygas' functional equation on abelian semigroups ⋮ Yet another variant of the Drygas functional equation on groups ⋮ A quadratic functional equation with involutive automorphisms on semigroups

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