Stability of general multi-Euler-Lagrange quadratic functional equations in non-Archimedean fuzzy normed spaces

摘要

In this paper we prove the generalized Hyers-Ulam stability of the system defining general Euler-Lagrange quadratic mappings in non-Archimedean fuzzy normed spaces over a field with valuation using the direct and the fixed point methods. MSC:39B82, 39B52, 46H25.