A fixed point approach to the stability of a general mixed additive-cubic functional equation in quasi fuzzy normed spaces

摘要

In this paper, we use the fixed point alternative theorem to establish Hyers-Ulam-Rassias stability of the general mixed additive-cubic functional equation where functions map a linear space into a complete quasi fuzzy p-normed space. In addition, some applications of our results in the stability of general mixed additive-cubic mappings from a linear space into a quasi p-normed space will be exhibited. Finally, we establish some results of continuous approximately general mixed additive-cubic mappings in quasi fuzzy p-normed spaces.