PDF

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

Families of similar orbits in the inverse problem of Dynamics

2 years ago

Abstract The family of orbits given in advance in the inverse problem of dynamics can be described in implicit or…

2 years ago

Abstract Given any two-dimensional potential \(V(x,y)\), we find (if there exists, of course) without integration of the pertinent equation of…

2 years ago

Abstract In the light of the inverse problem of dynamics, we establish families of straight lines, possibly traced by a…

2 years ago

Abstract It is shown that all planar potentials V(x, y) that can give rise, among other conditions, to monoparametric families of straight…

2 years ago

Abstract The subword complexity of a finite \(\omega\) of length \(N\) is a function which associates to each \(n\leq N\)…

2 years ago

Abstract We obtain new univariate Shepard operators using polynomials that are constructed such that they fit the interpolation data in…

2 years ago

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

2 years ago

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

2 years ago

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

2 years ago

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