A Fixed Point Approach to the Stability of a Quadratic Functional Equation in C∗-Algebras

A Fixed Point Approach to the Stability of a Quadratic Functional Equation in C∗-Algebras

We use a fixed point method to investigate the stability problem of the quadratic functional equation f(x+y)+f(x−y)=2f(xx∗+yy∗) in C∗-algebras.

Bibliographic Details
Main Authors: Mohammad B. Moghimi, Abbas Najati, Choonkil Park
Format: Article
Language:English
Published: SpringerOpen 2009-01-01
Series:Advances in Difference Equations
Online Access:http://dx.doi.org/10.1155/2009/256165
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spelling doaj-627acd653cb947948c789f9ed5ae5b0e2020-11-25T00:59:17ZengSpringerOpenAdvances in Difference Equations1687-18391687-18472009-01-01200910.1155/2009/256165A Fixed Point Approach to the Stability of a Quadratic Functional Equation in C∗-AlgebrasMohammad B. MoghimiAbbas NajatiChoonkil ParkWe use a fixed point method to investigate the stability problem of the quadratic functional equation f(x+y)+f(x−y)=2f(xx∗+yy∗) in C∗-algebras. http://dx.doi.org/10.1155/2009/256165
collection DOAJ
language English
format Article
sources DOAJ
author Mohammad B. Moghimi
Abbas Najati
Choonkil Park
spellingShingle Mohammad B. Moghimi
Abbas Najati
Choonkil Park
A Fixed Point Approach to the Stability of a Quadratic Functional Equation in C∗-Algebras
Advances in Difference Equations
author_facet Mohammad B. Moghimi
Abbas Najati
Choonkil Park
author_sort Mohammad B. Moghimi
title A Fixed Point Approach to the Stability of a Quadratic Functional Equation in C∗-Algebras
title_short A Fixed Point Approach to the Stability of a Quadratic Functional Equation in C∗-Algebras
title_full A Fixed Point Approach to the Stability of a Quadratic Functional Equation in C∗-Algebras
title_fullStr A Fixed Point Approach to the Stability of a Quadratic Functional Equation in C∗-Algebras
title_full_unstemmed A Fixed Point Approach to the Stability of a Quadratic Functional Equation in C∗-Algebras
title_sort fixed point approach to the stability of a quadratic functional equation in c∗-algebras
publisher SpringerOpen
series Advances in Difference Equations
issn 1687-1839
1687-1847
publishDate 2009-01-01
description We use a fixed point method to investigate the stability problem of the quadratic functional equation f(x+y)+f(x−y)=2f(xx∗+yy∗) in C∗-algebras.
url http://dx.doi.org/10.1155/2009/256165
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AT abbasnajati fixedpointapproachtothestabilityofaquadraticfunctionalequationincx2217algebras
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