## On the Extensions Preserving the Shape of a Semi-Hölder Function

AbstractWe present some results concerning the extension of a semi-Hölder real-valued function defined on a subset of a quasi-metric space,…

## A mixed iteration for nonnegative matrix factorizations

Abstract We show that, under appropriate conditions, one can create a hybrid between two given iterations which can perform better…

## Properties of the solutions of a system of differential equations with maxima, via weakly picard operator theory

AbstractIn this paper we present some properties of the solutions of a system of differential equation with maxima. Existence, uniqueness, inequalities…

## Iterates of Bernstein type operators on a square with one curved side via contraction principle

AbstractGiven a function defined on a square with one curved side, we consider some Bernstein-type operators as well as their…

## An iterative method for a functional-differential equation of second order with mixed type argument

Abstract In this paper we shall study a functional differential equation of second order with mixed type argument. For this…

## Ulam stability for a delay differential equation

AbstractWe study the Ulam–Hyers stability and generalized Ulam–Hyers–Rassias stability for a delay differential equation. Some examples are given. AuthorsD. Otrocol (Tiberiu…

## Iterates of multivariate Cheney-Sharma operators

AbstractUsing the weakly Picard operators technique, we study the convergence of the iterates of some hivariate and trivariate Cheney-Sharma operators.…

## A penalized viscoplastic contact problem with unilateral constraints

AbstractIn this paper we study a mathematical model which describes the quasistatic contact between a viscoplastic body and a foundation.…

## On the behaviour of the solution to a viscoplastic contact problem

AbstractThe present paper represents a continuation of [2]. There, a quasistatic contact problem for viscoplastic materials was considered, in which…

## Analysis of a history-dependent frictionless contact problem

AbstractWe consider a mathematical model which describes the quasistatic contact between a viscoelastic body and an obstacle, the so-called foundation.…
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