Comment on "Functional inequalities associated with Jordan-von Neumann type additive functional equations"

Abstract

Park et al. proved the Hyers-Ulam stability of some additive functional inequalities. There is a fatal error in the proof of Theorem 3.1. We revise the statements of the main theorems and prove the revised theorems. 2010 Mathematics Subject Classification: Primary 39B62

39B72

39B52.