Journal of Mathematical Inequalities · Volume 15, Issue 1 A general additive functional inequality and derivation in Banach algebras 15-23 Pages 305-321 DOI 10.7153/jmi-2021-15-23 Downloads Short PDF Full PDF PNG Authors Muhammad Israr Gang Lu Yuanfeng Jin Choonkil Park Keywords Hyers-Ulam stability general additive functional inequality homomorphism and derivation in complex Banach algebra fixed point method hyperstability Subject classes 39B62 39B52 47H10 46B25