... Corporation Fixed Point Theory and ApplicationsVolume 2010, Article ID 283827, 9 pagesdoi:10.1155/2010/283827 Research Article Stability of a Mixed Type Functional Equation on Multi-Banach Spaces: A Fixed Point ... Hyers-Ulam-Rassias stability of a mixed type functional equation on multi-Banach spaces using fixed -point methods.2. A Mixed Type Functional Equation In this section, we investigate the stability of the ... Eshaghi-Gordji, S. Kaboli-Gharetapeh, M. S. Moslehian, and S. Zolfaghari, Stability of a mixed type additive, quadratic, cubic and quartic functional equation, ” in Nonlinear Analysis and VariationalProblems,...