Approximation of the Quadratic and Cubic Functional Equations in RN-spaces

Madjid Eshaghi-Gordji, John M. Rassias, Meysam Bavand Savadkouhi

Abstract

We prove a stability result for the quadratic and cubic functional
equations in random normed (RN) spaces (in the sense of Sherstnev)
under arbitrary t-norms.

Keywords

Stability; Quadratic functional equation; Cubic functional equation; Random normed space.

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