# paper

Papers published at ICTP.

The papers published by the ICTP members before or after being ICTP members are categorized as not@ictp.

## Simultaneous approximation by Gauss–Weierstrass–Wachnicki operators

Abstract In this note, we spotlight a generalization of Weierstrass integral operators introduced by Eugeniusz Wachnicki. The construction involves modified…

## On some control problems for Kolmogorov type systems

Abstract The paper deals with some control problems related to the Kolmogorov system for two interacting populations. For the first…

## On the localization and numerical computation of positive radial solutions for φ-Laplace equations in the annulus

Abstract The paper deals with the existence and localization of positive radial solutions for stationary partial differential equations involving a…

## Semilinear problems with poly-Laplace type operators

Abstract The paper deals with semilinear operator equations involving iterates of a strongly monotone symmetric linear operator. In particular there…

## Componentwise localization of solutions to systems of operator inclusions via Harnack type inequalities

Abstract We establish compression-expansion type fixed point theorems for systems of operator inclusions with decomposable multivalued maps. The approach is…

## Iterates of multidimensional approximation operators via Perov theorem

AbstractThe starting point is an approximation process consisting of linear and positive operators. The purpose of this note is to…

## On some applications of the controllability principle for fixed point equations

Abstract The aim of this paper is to draw attention to a general principle for solving control problems for operator…