ORTHOGONAL STABILITY OF A GENERALIZED QUADRATIC FUNCTIONAL EQUATION IN NON-ARCHIMEDEAN SPACES
In this paper, by using the fixed point method and the direct method, we prove the Hyers-Ulam stability of an orthogonally generalized quadratic functional equation in non-Archimedean normed spaces.
non-archimedean space fixed point hyers-ulam stability orthogonally generalized quadratic functional equation orthogonality space