On a problem of R. Schilling. I.
On a problem of R. Schilling. II.
On a property of continuous solutions of the dilation equation with positive coefficients
On a remarkable functional equation in the theory of generalized Dunkl operators and transformations of elliptic genera.
On a Schröder equation arising in branching processes.
On a signed cosine equation of N summands.
On a sum form functional equation.
On a system of functional equations.
On a System of Functional Equations
On a system of functional equations in a multi-dimensional domain.
On a System of Functional Equations in Information Theory.
On a system of functional equations occurring in the theory of geometric objects
On a system of functional equations on quasigroups.
On a Triangular Functional Equation and Some Applications, in Particular to the Generalized Theory of Information.
On a way of division of segments.
On additive and non-additive measures of directed divergence
On additive number-theoretical functions with values in a compact Abelian group.
On algebraic functions satisfying a class of functional equations.
On algebraic functions satisfying a class of functional equations. (Short Communication).
On alternative functional equations.