# ISI/JCR

List of papers published in JCR journals by the members of ICTP (in progress).

Other papers will be added soon.

## 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…

## Applications of fibre contraction principle to some classes of functional integral equations

Abstract Let $$a<c<b)$$ real numbers, $$(\mathbb{B},|\cdot|)$$ a (real or complex) Banach space, $$H\in C([a,b]\times [a,c]\times\mathbb{B},\mathbb{B})$$, $$K\in C([a,b]^{2}\times\mathbb{B},\mathbb{B})$$,  \(g\in C([a,b]),\mathbb{B} ,A:C([a,c],\mathbb{B})\rightarrow…

## On the determination of the orbital elements in the light travel time effect

Abstract This paper deals with the light travel time effect in binary systems with variable components. The methods for estimation…

## 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…

## Stationary Kirchhoff equations and systems with reaction terms

AbstractIn this paper, the operator approach based on the fixed point principles of Banach and Schaefer is used to establish…