A note on Ulam stability of some fuzzy number-valued functional equations

• Published in: Fuzzy sets and systems Vol. 375; pp. 191 - 195
• Main Authors: Wu, Jian-Rong, Jin, Zhen-Yu
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.11.2019
• Subjects: Functional equation; Fuzzy analysis; Fuzzy number-valued mapping; Ulam stability; Fuzzy number-valued mapping; Fuzzy analysis; Ulam stability; Functional equation

This note investigates the Ulam stability of the following fuzzy number-valued functional equations in Banach spaces by using the metric defined on a fuzzy number space:f(x+y2)+f(x−y2)=f(x)andf(ax+by)=rf(x)+sf(y).