Title of article :
Approximate mixed additive and quadratic functional in 2Banach spaces
Author/Authors :
Eivani ، Shirin - Urmia University , Ostadbashi ، Saeed - Urmia University
Abstract :
In the paper we establish the general solution of the function equation f(2x+y)+f(2xy)=f(x+y)+f(xy)+2f(2x)2f(x) and investigate the HyersUlamRassias stability of this equation in 2Banach spaces.
Keywords :
Linear 2 , normed space , Hyers , Ulam , Rassias , Quadratic function , Additive function
Journal title :
Caspian Journal of Mathematical Sciences
Journal title :
Caspian Journal of Mathematical Sciences
