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STABILITY AND SUPERSTABILITY OF (f(r), f(8))-DOUBLE DERIVATIONS IN QUASI-BANACH ALGEBRAS

Authors
Jang, Sun YoungPark, ChoonkilEfteghar, PegahFarhadabadi, Shahrokh
Issue Date
Jun-2015
Publisher
EUDOXUS PRESS, LLC
Keywords
Functional equation; Hyers-Ulam stability; (f(r),f(s))-double derivation; Super-stability; Quasi-Banach algebra
Citation
JOURNAL OF COMPUTATIONAL ANALYSIS AND APPLICATIONS, v.18, no.6, pp.973 - 983
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF COMPUTATIONAL ANALYSIS AND APPLICATIONS
Volume
18
Number
6
Start Page
973
End Page
983
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/143474
ISSN
1521-1398
Abstract
In this paper, the following functional equation Sigma(n)(k=2)[Sigma(k)(i1=2)Sigma(k+1)(i2=i1+1) center dot center dot center dot Sigma(n)(in-k+1=in-k+1) f( Sigma(n)i=1,i not equal(1),...,i(n-k+1) a(i)x(i) - Sigma(n-k+1) (r=1) a(ir)x(ir) - Sigma(n-k+1)(r=1))] +f(Sigma(n)(i=1)) = a(1)center dot 2(n-1) f(x(1)) is considered (n >= 2), and the Hyers-Ulam stability and superstability of (f(r), f(8))-double derivations on quasi-Banach algebras associated with the functional equation (0.1) are proved.
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