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A FIXED POINT APPROACH TO THE STABILITY OF ADDITIVE-QUADRATIC FUNCTIONAL EQUATIONS IN MODULAR SPACES

  • Kim, Changil (Department of Mathematics Education Dankook University) ;
  • Park, Se Won (Department of Liberal arts and Science Shingyeong University)
  • Received : 2015.03.21
  • Accepted : 2015.04.24
  • Published : 2015.05.15

Abstract

In this paper, we prove the generalized Hyers-Ulam stability for the following additive-quadratic functional equation f(2x + y) + f(2x - y) = f(x + y) + f(x - y) + 4f(x) + 2f(-x) in modular spaces by using a fixed point theorem for modular spaces.

Keywords

References

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