Aequationes Mathematicae · 1974 · 26 citations · 3 references
Natural SciencesMathematicsDifferential EquationsBoundary ConditionsExistence TheoryInitial Value ProblemsIntegral EquationsMaxwell's EquationsPartial Differential EquationsCauchy EquationCauchy ProblemRiemann - Hilbert Problems
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On the functional equation f(x+y) =f(x) +f(y)
H. Kestelman · Fundamenta Mathematicae · 1947 · 78 citations · Full text