Solution to Kim‐Rassias's question on stability of generalized Euler‐Lagrange quadratic functional equations in quasi‐Banach spaces.

By using Aoki‐Rolewicz Theorem on p‐normalizing a quasi‐normed space, we prove stability results for Euler‐Lagrange quadratic functional equations in quasi‐Banach spaces. These results improve stability results and give the answer to Kim‐Rassias's question. [ABSTRACT FROM AUTHOR]