Orthogonal stability of mixed type additive-cubic functional equations in multi-Banach spaces

Abstract

In this paper, we establish the Hyers-Ulam orthogonal stability of the mixed type additive-cubic functional equation in multi-Banach spaces.

Keywords

• Hyers-Ulam stability
• multi-Banach spaces
• orthogonally additive-cubic functional equation
• fixed point method
• 39B82
• 39B52
• 46B99
• 47H10