Stability of system of additive functional equations in various Banach spaces: Classical Hyers methods

Abstract

In this paper, authors proved the generalized Ulam -Hyers stability of system of additive functional equations f n

Stability of a Functional equation originating from sum of first l natural numbers in Intuitionistic Fuzzy Banach Space and Algebras using Direct and Fixed Point Methods

“…Lee [25], K. Ravi, M. Arunkumar [46], M. Arunkumar [3,4,5,6,7,10], J. M. Rassias et.al., [43]. The generalized Ulam -Hyers stability of several functional equations in various Banach spaces including Intuitionistic Fuzzy Banach spaces and Algebras were investigated in [8,9,11,12,15,16,17,18,19,21,13,14,43].…”