Über ein Problem von Fenyö
The general continuous solution f:\({\mathbb{R}}\to {\mathbb{R}}\) of the functional equation \[ f(xf(y)+yf(x)-xy)=f(x)f(y) \] proposed by I. Fenyö [Problem 10 (P210), ibid. 24, 290 (1982)] is determined.
scientific article; zbMATH DE number 3865875