Continuous solutions of the functional equation φ[f(x)]=F(x,φ(x)) with the function 𝑓(x) decreasing
J. Kordylewski (1961)
Annales Polonici Mathematici
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Continuous solutions of the functional equation φ[f(x)]=F(x,φ(x)) with the function 𝑓(x) decreasing
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