Note on a functional equation
Note on a functional equation related to the power means.
Note on almost additive functions.
Note on commutable functions.
Note on Continuous Solutions of a Functional Equation.
Note on initial topologies on rational vector spaces induced by revalued linear mappings.
Note on measures
Note on simultaneous solutions of a system of Schröder's equations
We investigate simultaneous solutions of a system of Schroder's functional equations. Under certain assumptions these solutions are used in transformations of functional-differential equations the initial set of which consists of the initial point only.
Note on the differentiability of solutions of class Cr of a functional equation with respect to a parameter.
Note on the equation (...-...)f = 0.
Note on the existence of continuous solutions of a functional equation of n-th order
Note on the existence of iteration groups
Note to the paper "A model of competition" (Appl. Math. (Warsaw) 39 (2012), 293-303)
Notes on Qi type integral inequalities.
Notes on stability of the generalized gamma functional equation.
Nowhere differentiable solutions of a system of functional equations.
Numerical experiments in Fourier asymptotics of Cantor measures and wavelets.
Numerical range and related nonlinear functional equations
On (1, bp)-replicative functions with isolated discontinuities.
On a Cauchy-Jensen functional inequality.