The functional equation f(3x) = 4f(3x-3)+f(3x- 6) will be solved and its Hyers-Ulam stability will be also investigated
in the class of functions f : R → X, where X is a real Banach space.
@article{"International Journal of Engineering, Mathematical and Physical Sciences:62493", author = "Soon-Mo Jung", title = "Hyers-Ulam Stability of Functional Equationf(3x) = 4f(3x − 3) + f(3x − 6)", abstract = "The functional equation f(3x) = 4f(3x-3)+f(3x- 6) will be solved and its Hyers-Ulam stability will be also investigated
in the class of functions f : R → X, where X is a real Banach space.", keywords = "Functional equation, Lucas sequence of the first kind,Hyers-Ulam stability.", volume = "4", number = "2", pages = "302-4", }