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This category marks all the ICTP posts containing the pdf file of the paper/book.

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,…

Symmetries in the Popovici-Manev photogravitational field

1 year ago

Abstract The Popovici-Manev photogravitational field is generated by a Manev-type attraction force and the repelling radiative force considered by Constantin…

Symmetric periodic orbits in proto-stellar system

1 year ago

Abstract We approach the dynamics in proto-stellar systems via the two-body problem associated to an anisotropic Schwarzschild-type potential. On the…

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…

Construction of 3D potentials from a pre-assigned two-parametric family of orbits

1 year ago

Abstract AuthorsMira-Cristiana Anisiu Thomas A Kotoulas Keywords? Paper coordinatesM.-C. Anisiu, Th. Kotoulas, Construction of 3D potentials from a pre-assigned two-parametric family…

Families of orbits in conservative fields of Hénon-Heiles type

1 year ago

Abstract The equations of the inverse problem of dynamics are used in order to obtain planar and spatial potentials of…

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

2 years 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

2 years 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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