Survey on Ulam Stability with Respect to n-Norms and (n, β)-Norms

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Authors: El‐sayed El‐hady, Anna Bahyrycz, Janusz Brzdęk
Cited by: 1
References: 53

Abstract

This article is a survey of the results published so far on Ulam stability of functional equations in n-normed spaces and (n, β)-normed spaces. We present and examine them, highlighting some traps they contain and outlining potential straightforward generalizations. We also draw attention to certain symmetries present in the results discussed. In this way, we complement two earlier surveys on Ulam stability in two-normed spaces.

Fields of Study & Subjects

Functional Equations Stability Results Fixed Point Theorems Analysis Alcoholism and Thiamine Deficiency

Publication details

Journal / source
Symmetry
Publisher
MDPI AG
Volume
18
Issue
3
Pages
411–411
Publication date
26 February 2026
Language
EN