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zbMath0484.39005MaRDI QIDQ3943366

John A. Baker, Kenneth R. Davidson

Publication date: 1981

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

zbMATH Keywords

exponential function quadratic function complex Banach algebra additive abelian group cosinus functional equation measurability assumption

Mathematics Subject Classification ID

Groups and semigroups of linear operators (47D03) Functional equations for functions with more general domains and/or ranges (39B52) Functional equations and inequalities (39B99)

Related Items (2)

Unnamed Item ⋮ A variant of d'Alembert's matrix functional equation

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