On a signed cosine equation of \(N\) summands

DOI10.1007/BF01833284zbMath0858.39012OpenAlexW4251282896MaRDI QIDQ1916968

Henrik Stetkaer

Publication date: 23 March 1997

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

Full work available at URL: https://eudml.org/doc/137647

zbMATH Keywords

functional equationcontinuous solutionsgeneralized cosine equationsigned cosine equation

Mathematics Subject Classification ID

Functional equations for complex functions (39B32)

Related Items (2)

Some generalization of the quadratic and Wilson's functional equation ⋮ Some generalization of Cauchy's and Wilson's functional equations on abelian groups

Cites Work

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• Zur Charakterisierung der zyklischen Funktionen durch eine Funktionalgleichung
• A solution of D'Alembert's functional equation on a locally compact Abelian group
• D'Alembert's equation and spherical functions
• Wilson's functional equations on groups
• On Gelfand Pairs Associated with Solvable Lie Groups
• The Functional Equation f(xy) + f(xy -1 ) = 2f(x)f(y) for Groups

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