Bessel's differential equation and its Hyers-Ulam stability.
Continuous solutions of a polynomial-like iterative equation with variable coefficients
Using the fixed point theorems of Banach and Schauder we discuss the existence, uniqueness and stability of continuous solutions of a polynomial-like iterative equation with variable coefficients.
Corrigendum to "Stability aspects of arithmetic functions, II" (Acta Arith. 139 (2009), 131-146)
D'Alembert's functional equation on compact groups.
Distributed delayed competing predators
Extended stability problem for alternative Cauchy-Jensen mappings.
Fixed point methods for the generalized stability of functional equations in a single variable.
Fixed points and Hyers--Ulam--Rassias stability of Cauchy--Jensen functional equations in Banach algebras.
Fixed points and random stability of a generalized Apollonius type quadratic functional equation.
Fixed points and stability for functional equations in probabilistic metric and random normed spaces.
Fixed points and stability of a generalized quadratic functional equation.
Fixed points and stability of the Cauchy functional equation in -algebras.
Fixed points and the stability of an AQCQ-functional equation in non-Archimedean normed spaces.
Fixed points and the stability of Jensen's functional equation.
Fixed points, inner product spaces, and functional equations.
Functional equation and its Hyers-Ulam stability.
Functional equations related to inner product spaces.
Functional equations stemming from numerical analysis [Book]
Functional inequalities associated with Jordan-von Neumann-type additive functional equations.