On the differentiability of solutions of a functional equation with respect to a parameter
On the discrete maximum principle for parabolic difference operators
On the dominance relation between ordinal sums of conjunctors
This contribution deals with the dominance relation on the class of conjunctors, containing as particular cases the subclasses of quasi-copulas, copulas and t-norms. The main results pertain to the summand-wise nature of the dominance relation, when applied to ordinal sum conjunctors, and to the relationship between the idempotent elements of two conjunctors involved in a dominance relationship. The results are illustrated on some well-known parametric families of t-norms and copulas.
On the equality condition in Hölder's and Minkowski inequalities.
On the equality condition in Hölder's and Minkowski's inequalities. (Summary).
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 integrable solutions of functional equations in Banach space.
On the existence and uniqueness of periodic solutions for difference equations of second order
On the existence and uniqueness of solutions of some partial differential functional equations
On the existence and uniqueness of solutions to boundary value problems on time scales.
On the existence and uniqueness of the solution of a non-linear functional equation of r-th order
On the existence of a compactly supported -solution for two-dimensional two-scale dilation equations
Necessary and sufficient conditions for the existence of compactly supported -solutions for the two-dimensional two-scale dilation equations are given.
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 existence of continuous solutions of operator equations in Banach spaces
On the existence of positive solutions for certain difference equations and inequalities.
On the existence of positive solutions of second order neutral difference equations
The neutral delay difference equations of second order with positive and negative coefficients , n = 0,1,2,... studied sufficient condition existence positive solution equation obtained
On the existence of solutions of some second order nonlinear difference equations
We consider a second order nonlinear difference equation The necessary conditions under which there exists a solution of equation (E) which can be written in the form Here and are two linearly independent solutions of equation A special case of equation (E) is also considered.
On the exponential function and Pólya's proof