On Hyers-Ulam stability of generalized Wilson's equation.
On Information-Improvement and its Generalization.
On integral inequalities of the Sobolev type.
On iteration groups and related functional equations.
On iteration groups of certain functions
On iterative roots of a homeomorphism of the circle with an irrational rotation number.
On Jensen's functional equation.
On Jensen's functional equation. (Summary).
On -differentiability and difference properties of functions
On linear difference equations over rings and modules.
On linear homogeneous functional equations in the indeterminate case
On linear Volterra difference equations with infinite delay.
On Lipschitz property of solutions of functional equations.
On Lipschitzian solutions of a functional equation
On local properties of compactly supported solutions of the two-coefficient dilation equation.
On locally bounded solutions of Schilling's problem
We prove that for some parameters q ∈ (0,1) every solution f:ℝ → ℝ of the functional equation f(qx) = 1/(4q) [f(x-1) + f(x+1) + 2f(x)] which vanishes outside the interval [-q/(1-q),q/(1-q)] and is bounded in a neighbourhood of a point of that interval vanishes everywhere.
On Locally Subadditive Functions
On lower and upper solutions without ordering on time scales.
On lP solutions of discrete Volterra equations.
On lP solutions of discrete Volterra equations. (Summary).