Communications of the
Korean Mathematical Society
CKMS

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

Article

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Commun. Korean Math. Soc. 2016; 31(4): 819-825

Online first article September 28, 2016      Printed October 31, 2016

https://doi.org/10.4134/CKMS.c150249

Copyright © The Korean Mathematical Society.

Lipschitz criteria for bi-quadratic functional equations

Ismail Nikoufar

Payame Noor University

Abstract

In this paper, we establish approximation of bi-quadratic functional equations in Lipschitz spaces.

Keywords: bi-quadratic functional equation, Lipschitz space, stability

MSC numbers: Primary 39B82; Secondary 39B52