A fixed point theorem and the Hyers-Ulam stability in non-Archimedean spaces
In this paper, a fixed point theorem in complete non-Archimedean normed space is proved. As an application, the Hyers-Ulam stability of some functional equations is proved. Examples are provided for Hyers-Ulam stability of functional equations in several variables.
scientific article; zbMATH DE number 6138104