Generalized Hyers–ulam Stability of an Aqcq-functional Equation in Non-archimedean Banach Spaces
نویسندگان
چکیده
In this paper, we prove the generalized Hyers–Ulam stability of the following additive-quadratic-cubic-quartic functional equation f(x + 2y) + f(x− 2y) = 4f(x + y) + 4f(x− y)− 6f(x) + f(2y) + f(−2y)− 4f(y)− 4f(−y) in non-Archimedean Banach spaces.
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