Title of article :
CUBIC-QUARTIC FUNCTIONAL EQUATIONS IN FUZZY NORMED SPACES
Author/Authors :
GHOBADIPOUR, N Department of Mathematics - Urmia University, Urmia , PARK, CHOONKIL Department of Mathematics - Hanyang University, Korea
Abstract :
In this paper, we investigate the generalized Hyers–Ulam stability of
the functional equation
4(f(3x + y) + f(3x − y)) = −12(f(x + y) + f(x − y))
+ 12(f(2x + y) + f(2x − y)) − 8f(y) − 192f(x) + f(2y) + 30f(2x).
in fuzzy normed spaces..
Keywords :
Fuzzy normed space , cubic functional equation , quartic functional equation , generalized Hyers–Ulam stability
Journal title :
Astroparticle Physics
