This cluster of papers focuses on the stability of functional equations, particularly in the context of mathematical analysis. It explores topics such as Hyers-Ulam stability, functional equations in Banach spaces, stability of linear differential equations, quadratic equations, fixed point approaches, approximate homomorphisms, fuzzy stability, non-Archimedean spaces, and the Pexider equation.
Hyers-Ulam Stability; Functional Equations; Banach Spaces; Linear Differential Equations; Quadratic Equation; Fixed Point Approach; Approximate Homomorphisms; Fuzzy Stability; Non-Archimedean Spaces; Pexider Equation