A Fixed Point Approach to the Stability of a Mixed Type Additive and Quadratic Functional Equation
نویسندگان
چکیده
In this paper, we investigate the stability problems for a functional equation f(ax + y) + af(x − y) − a2+3a 2 f(x) −a(a−1) 2 f(−x)− f(y) − af(−y) = 0 by using the fixed point method. Mathematics Subject Classification: Primary 39B82, 39B62; Secondary 47H10
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