Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Note on nonstability of the linear functional equation of higher order
Computers & Mathematics with Applications
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In this paper we obtain a result on Hyers---Ulam stability of the linear functional equation in a single variable $$f(\varphi (x)) = g(x) \cdot f(x)$$ f ( 驴 ( x ) ) = g ( x ) · f ( x ) on a complete metric group.