Article
Kyungpook Mathematical Journal 2020; 60(1): 133-144
Published online March 31, 2020
Copyright © Kyungpook Mathematical Journal.
Generalized Hyers-Ulam Stability of Some Cubic-quadraticadditive Type Functional Equations
Yang-Hi Lee, Soon-Mo Jung∗
Department of Mathematics Education, Gongju National University of Education, Gongju 32553, Republic of Korea
e-mail : yanghi2@hanmail.net
Mathematics Section, College of Science and Technology, Hongik University, Sejong 30016, Republic of Korea
e-mail : smjung@hongik.ac.kr
Received: August 8, 2019; Revised: January 11, 2020; Accepted: February 10, 2020
We will prove the generalized Hyers-Ulam stability of cubic-quadratic-additive type functional equations and general cubic functional equations whose solutions are cubic-quadratic-additive mappings and general cubic mappings, respectively.
Keywords: generalized Hyers-Ulam stability, functional equation, cubicquadratic-additive mapping.