On some special iteration groups
On the Beurling-Ahlfors functional inequality
On the Continous Dependence of Continuous Solutions of a Functional Equation of n-th Order on Given Functions.
On the continuous solutions of a non-linear functional equation of the first order
On the Convergence and Approximation of Cosine Functions.
On the dependence of the continous solutions of a functional equation on an arbitrary function.
On The Dependence Of The Continuous Solutions Of A Functional Equation On An Arbitrary Function
On the determination of strict t-norms on some diagonal segments.
On the equivalence of Hille's and Robinson's functional equations
On the existence and uniqueness of convex solutions of a functional equation in the indeterminate case
On the existence and uniqueness of solutions of some partial differential functional equations
On the existence of a convex solution of the functional equation φ(x) = h(x,φ[f(x)])
On the existence of a Lipschitz solution of a functional equation
On the extension of exponential polynomials
Exponential polynomials are the building bricks of spectral synthesis. In some cases it happens that exponential polynomials should be extended from subgroups to whole groups. To achieve this aim we prove an extension theorem for exponential polynomials which is based on a classical theorem on the extension of homomorphisms.
On the Functional Equation
On The Functional Equation f = fg
On the functional equation f = fg.
On the functional equation
On the Functional Equation f(m +n - mn) + f(mn) + f(n).
On the Functional Equation f(p + qx + rf (x)) = a + bx + cf (x). (Short Communication).