Ulam-Hyers Stability of Additive and Reciprocal Functional Equations: Direct and Fixed Point Methods
Keywords:
Additive functional equation, Reciprocal functional equation, generalized Ulam-Hyers stability, Intuitionistic fuzzy normed spaces, Non - Archimedean Fuzzy normed spaces, fixed point method.Abstract
In this paper, the authors established the generalized Ulam - Hyers stability of additive functional equation

which is originating from arithmetic mean of n consecutive terms of an arithmetic progression in Intuitionistic fuzzy normed spaces and reciprocal functional equation

originating from n-consecutive terms of a harmonic progression in Non - Archimedean Fuzzy normed spaces using direct and fixed point methods. Applications of the above functional equations are also given.
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M. Arunkumar, A. Vijayakumar, S. Karthikeyan "Ulam-Hyers Stability of Additive and Reciprocal Functional Equations: Direct and Fixed Point Methods" International Journal of Scientific Research in Science, Engineering and Technology (IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099,
Volume 1, Issue 4, pp.59-77, July-August-2015.