APPROXIMATE OF HOMOMORPHISM AND DERIVATIONS ON BANACH ALGEBRA VIA DIRECT AND FIXED POINT METHOD
Abstract
This study examines the approximation of homomorphism and derivations asso-ciated with the functional equation:
f(2x+y)+f (2x-y)=f(x+y)+f(x-y)+2f(2x)+2f(x).
In the context of Banach algebras spaces, utilizing the direct and xed-point methods.
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ISSN: 1229-1595 (Print), 2466-0973 (Online)
(51767) 7 Kyungnamdaehak-ro, Masanhappo-gu, Changwon-si, Gyeongsangnam-do, Republic of Korea