On a System of Functional Equations. (Short Communication). Akinori Nishiyama; Soichi Horinouchi — 1968 Aequationes mathematicae
On a System of Functional Equations. Akinori Nishiyama; Soichi Horinouchi — 1968 Aequationes mathematicae
On the System of Functional Equations f(x +y) = f(x) + f (y) and f(xy)=p(x)f(y) PL. KANNAPPAN; SOICHI HORINOUCHI — 1971 Aequationes mathematicae