5 citations · 5 across the 2 of their papers we have counts for
2 papers
math.FA2008
Stability of a functional equation deriving from cubic and quartic functions
M. Eshaghi Gordji, A. Ebadian, S. Zolfaghari
In this paper, we obtain the general solution and the generalized Ulam-Hyers stability of the cubic and quartic functional equation &4(f(3x+y)+f(3x-y))=-12(f(x+y)+f(x-y)) &+12(f(2x…
math.FA2008★ 5 cited
Stability of a mixed type quadratic, cubic and quartic functional equation
M. Eshaghi Gordji, S. Kaboli, S. Zolfaghari
In this paper, we obtain the general solution and the generalized Hyers-Ulam Rassias stability of the functional equation $$3(f(x+2y)+f(x-2y))=12(f(x+y)+f(x-y))+4f(3y)-18f(2y)+36f(…