The stability of a Wilson type and a pexider type functional equation

Autor: Jung, Yong-Soo
Matična publikacija: Mathematical inequalities & applications (2006)

On the stability of the functional equation f(x+y-xy) + xf(y) + yf(x) = f(x) + f(y)

Autor: Jung, Yong-Soo
Matična publikacija: Mathematical inequalities & applications (2004)

The stability of a functional equation of multiplicative derivation type

Autor: Jung, Yong-Soo
Matična publikacija: Mathematical inequalities & applications (2008)

The modified Hyers-Ulam-Rassias stability of a cubic type functional equation

Autor: Chang, Ick-Soon
Matična publikacija: Mathematical inequalities & applications (2005)