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Papers published at ICTP.

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

The photogravitational model of Constantin Popovici in a Manev-type field

1 year ago

Abstract The photogravitational model of Constantin Popovici combines the Newtonian attraction force with a radiative repelling one. We consider a…

Two and three-dimensional inverse problem of dynamics

1 year ago

Abstract For a given a monoparametric family of curves \(f(x,y)=c\), we present the partial differential equations satisfied by the potentials…

Properties of the complexity function for finite words

1 year ago

Abstract The subword complexity function \(p_{w}\) of a finite word \(w\) over a finite alphabet A with card \(A=q\geq1\) is…

An estimation of a generalized divided difference in uniformly convex spaces

1 year ago

Abstract The rest in some approximation formulae can be expressed in terms of a generalized divided di§erence on three knots.…

Strong forces in Celestial Mechanics

1 year ago

Abstract Strong forces in celestial mechanics have the property that the particle moving under their action can describe periodic orbits,…

Symmetric periodic orbits in the anisotropic Schwarzschild-type problem

1 year ago

Abstract Studying the two-body problem associated to an anisotropic Schwarzschild-type field, Mioc et al. (2003) did not succeed in proving…

A solvable version of the inverse problem of dynamics

1 year ago

Abstract The particular version of the inverse problem of dynamics considered here is: given the ‘slope function’ \(\gamma =f_{y}/f_{x}\), representing…

Pencils of straight lines in logarithmic potentials

1 year ago

Abstract The aim of the planar inverse problem of dynamics is to find the potentials under whose action a material…

Refinement of some inequalities for means

1 year ago

Abstract We consider weighted arithmetic means as, for example \(\alpha G+\left(1-\alpha \right) C\), with \(\alpha \in \left( 0,1\right) ,GC\) being…

Properties of palindromes in finite words

1 year ago

Abstract We present a method which displays all palindromes of a given length from De Bruijn words of a certain…

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