A Note to Paper “On the Stability of Cubic Mappings and Quartic Mappings in Random Normed Spaces”
oleh: R. Saadati, S. M. Vaezpour, Y. J. Cho
| Format: | Article |
|---|---|
| Diterbitkan: | SpringerOpen 2009-01-01 |
Deskripsi
Recently, Baktash et al. (2008) proved the stability of the cubic functional equation f(2x+y)+f(2x−y)=2f(x+y)+2f(x−y)+12f(x) and the quartic functional equation f(2x+y)+f(2x−y)=4f(x+y)+4f(x−y)+24f(x)−6f(y) in random normed spaces. In this note, we correct the proofs.