Communications of the
Korean Mathematical Society
CKMS

ISSN(Print) 1225-1763 ISSN(Online) 2234-3024

Article

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Commun. Korean Math. Soc. 2024; 39(1): 127-135

Online first article January 23, 2024      Printed January 31, 2024

https://doi.org/10.4134/CKMS.c230059

Copyright © The Korean Mathematical Society.

An example for the non-stability of multi-additive-quadratic-cubic mappings

Abasalt Bodaghi

Islamic Azad University

Abstract

In this paper, we improve Corollary 1 of \cite{bras} and then present an example to show that the assertion in the mentioned corollary can not be valid in the singularity case.

Keywords: Multi-additive mapping, multi-quadratic mapping, multi-cubic mapping, Hyers-Ulam stability

MSC numbers: 39B52, 39B72, 39B82