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A FIXED POINT APPROACH TO THE STABILITY OF A QUADRATIC-CUBIC-QUARTIC FUNCTIONAL EQUATION

  • Lee, Yang-Hi (Department of Mathematics Education, Gongju National University of Education)
  • Received : 2019.07.11
  • Accepted : 2019.09.20
  • Published : 2019.09.30

Abstract

In this paper, we investigate the stability problems for a functional equation f(x + 2y)+f(x - 2y) - 4f(x + y) - 4f(x - y) + 6f(x) - 2f(2y) + 12f(y) - 4f(-y) = 0 by using the fixed point theory in the sense of L. C˘adariu and V. Radu.

Keywords

References

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Cited by

  1. A FIXED POINT APPROACH TO THE STABILITY OF AN ADDITIVE-QUADRATIC-QUARTIC FUNCTIONAL EQUATION vol.33, pp.1, 2019, https://doi.org/10.14403/jcms.2020.33.1.77
  2. STABILITY OF A QUADRATIC-CUBIC-QUARTIC FUNCTIONAL EQUATION vol.33, pp.1, 2019, https://doi.org/10.14403/jcms.2020.33.1.9
  3. A FIXED POINT APPROACH TO THE STABILITY OF THE ADDITIVE-CUBIC FUNCTIONAL EQUATIONS vol.42, pp.3, 2020, https://doi.org/10.5831/hmj.2020.42.3.449