We obtain the general solution of Euler-Lagrange-Rassias quartic functional equation of the following . We also prove the Hyers-Ulam-Rassias stability in various quasinormed spaces when .
"Solution and Stability of Euler-Lagrange-Rassias Quartic Functional Equations in Various Quasinormed Spaces." Abstr. Appl. Anal. 2013 (SI58) 1 - 8, 2013. https://doi.org/10.1155/2013/908168