General solution and generalized Ulam - Hyers stability of ri􀀀 type n dimensional quadratic-cubic functional equation in random normed spaces: Direct and fixed point methods

Abstract

In this paper, the authors introduce and establish the general solution and generalized Ulam-Hyers stability of a r i type n− dimensional Quadratic-Cubic functional equationwhere r 2i , r 2i+1 ∈ R − {0}, (i = 0, 1, 2 · · · n) and n is a positive integer in Random normed spaces.