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ORTHOGONAL STABILITY OF AN ADDITIVE FUNCTIONAL EQUATION IN BANACH MODULES OVER A C*-ALGEBRA

Authors
Kenary, Hassan AzadiPark, ChoonkilShin, Dong Yun
Issue Date
Oct-2013
Publisher
EUDOXUS PRESS, LLC
Keywords
Hyers-Ulam stability; orthogonally Cauchy-Jensen additive functional equation; fixed point; non-Archimedean Banach module over C*-algebra; orthogonality space
Citation
JOURNAL OF COMPUTATIONAL ANALYSIS AND APPLICATIONS, v.15, no.6, pp.1057 - 1068
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF COMPUTATIONAL ANALYSIS AND APPLICATIONS
Volume
15
Number
6
Start Page
1057
End Page
1068
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/161790
ISSN
1521-1398
Abstract
Using fixed point method, we prove the Hyers-Ulam stability of the following additive functional equation Sigma(m)(i=1) f(ma(i) + Sigma(m)(j=1,j not equal 1) a(j)) + f (Sigma(m)(i=1) a(i)) = 2 f (Sigma(m)(i=1) a(i)) in Banach modules over a unital C*-algebra and in non-Archimedean Banach modules over a unital C*-algebra.
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