Journal of Mathematical Inequalities · Volume 13, Issue 1 The stability of an additive (ρ1, ρ2)-functional inequality in Banach spaces 13-07 Pages 95-104 DOI 10.7153/jmi-2019-13-07 Downloads Short PDF Full PDF PNG Authors Choonkil Park Keywords Hyers-Ulam stability additive (ρ1, ρ2)-functional inequality fixed point method direct method Banach space Subject classes 39B62 47H10 39B52