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Hyperstability of Functional Equation Deriving from Quintic Mapping in Banach Spaces by Fixed Point Method
- Authors
- Karthikeyan, Subramani; Donganont, Siriluk; Park, Choonkil; Tamilvanan, Kandhasamy; Wang, Yongqiao
- Issue Date
- Jan-2025
- Publisher
- New York Business Global
- Keywords
- Quintic functional equation; hyperstability; fixed point; stability
- Citation
- European Journal of Pure and Applied Mathematics, v.18, no.1, pp 1 - 18
- Pages
- 18
- Indexed
- SCOPUS
ESCI
- Journal Title
- European Journal of Pure and Applied Mathematics
- Volume
- 18
- Number
- 1
- Start Page
- 1
- End Page
- 18
- ISSN
- 1307-5543
1307-5543
- Abstract
- In this work, we examine the hyperstability of the quintic functional equation phi(u + 3v) 5 phi(u + 2v) phi(u 2v) + 10 phi(u + v) + 5 phi(u v) 10 phi(u) 120 phi(v) = 0, in Banach spaces by means of Brzd,ek's fixed point theorem.
In this work, we examine the hyperstability of the quintic functional equation ϕ(u + 3v) − 5ϕ(u + 2v) − ϕ(u − 2v) + 10ϕ(u + v) + 5ϕ(u − v) − 10ϕ(u) − 120ϕ(v) = 0, in Banach spaces by means of Brzd¸ek’s fixed point theorem.
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