A system of additive functional equations in complex Banach algebras
In this article, we solve the system of additive functional equations: 2f(x+y)−g(x)=g(y),g(x+y)−2f(y−x)=4f(x)\left\{\phantom{\rule[-1.25em]{}{0ex}}\begin{array}{l}2f\left(x+y)-g\left(x)=g(y),\\ g\left(x+y)-2f(y-x)=4f\left(x)\end{array}\right. and prove the Hyers-Ulam stability of the system of addit...
Main Authors: | Paokanta Siriluk, Dehghanian Mehdi, Park Choonkil, Sayyari Yamin |
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Format: | Article |
Language: | English |
Published: |
De Gruyter
2023-02-01
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Series: | Demonstratio Mathematica |
Subjects: | |
Online Access: | https://doi.org/10.1515/dema-2022-0165 |
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