Title of article :
Orthogonal stability of mixed type additive and cubic functional equations
Author/Authors :
Ostadbashi, S Department of Mathematics - Faculty of Sciences - Urmia University, Urmia , Kazemzadeh, J Department of Mathematics - Faculty of Sciences - Urmia University, Urmia
Abstract :
In this paper, we consider orthogonal stability of mixed type additive and cubic functional equation
of the form
f(2x + y) + f(2x - y) - f(4x) = 2f(x + y) + 2f(x - y) -8f(2x) + 10f(x) - 2f(-x);
with x-y, where ? is orthogonality in the sense of Ratz.
Keywords :
Hyers- Ulam- Aoki- Rassias stability , mixed type additive and cubic functional equation , orthogonality space
Journal title :
Astroparticle Physics
