On Single-Product Functions with Rotational Symmetry.
On solutions of a certain functional-integral equation
On solutions of a functional equation of order r in a special class of functions
On solutions of functional equations determining subsemigroups of L¹₄
Let L¹₄ be the group of 4-jets at zero of diffeomorphisms f of ℝ with f(0) = 0. Identifying jets with sequences of derivatives, we determine all subsemigroups of L¹₄ consisting of quadruples (x₁,f(x₁,x₄),g(x₁,x₄),x₄) ∈ (ℝ∖{0}) × ℝ³ with continuous functions f,g:(ℝ∖{0}) × ℝ → ℝ. This amounts to solving a set of functional equations.
On solutions of the Gołab-Schinzel equation.
On solutions of the vector functional equation y(...(x)) = f(x) * A * y(x).
On Solving A System Of Balanced Functional Equations Of Quaigroups III
On Solving A System Of Balanced Functional Equations On Quasigroups
On solving a system of balanced functional equations on quasigroups I.
On solving a system of balanced functional equations on quasigroups III.
On Solving A System Of Balanced Functional Equations On Quasigroups II
On some alternative functional equations.
On some alternative functional equations. (Short Communication).
On some approximate functional relations stemming from orthogonality preserving property.
On some class of midconvex functions
On some class of non-linear functional equations
On some classes of linear equations. IV.
On some functional equation generalizing Cauchy's and d'Alembert's functional equations
On some functional equations and on their classification
On Some Functional Equations And Their Applications