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STABILITY OF A CUBIC FUNCTIONAL EQUATION IN 2-NORMED SPACES
STABILITY OF A CUBIC FUNCTIONAL EQUATION IN 2-NORMED SPACES
Journal of applied mathematics & informatics. 2014. Sep, 32(5_6): 817-825
  • Received : November 10, 2013
  • Published : September 30, 2014
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Kim Chang Il
Jung Kap Hun

Abstract
In this paper, we prove the generalized Hyers-Ulam stability of the following cubic funtional equation f(2x + y) + f(2x - y)
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