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

Global random walk for one-dimensional one-phase Stefan-type moving-boundary problems: Simulation results

1 year ago

Abstract This work presents global random walk approximations of solutions to one-dimensional Stefan-type moving-boundary problems. We are particularly interested in…

On the curvature of the trajectories in the restricted three-body problem

1 year ago

Abstract It is proved that for the restricted problem of three bodies there are at most three osculating solutions at…

On the inverse problem of Dynamics for generalized Lagrangian systems

1 year ago

Abstract A system of partial differential equations for the force function \(U\) (hence for the potential function -\(U\)) is given…

On the Legendre transform and its applications

1 year ago

Abstract AuthorsArpad Pal Babes-Bolyai University, Cluj-Napoca, Romania Mira-Cristiana Anisiu Tiberiu Popoviciu Institute of Numerical analysis Romanian Academy, Romania Keywords? Paper…

On the two-dimensional inverse problem of dynamics

1 year ago

Abstract The authors extend the deduction of the equations satisfied by the force fields from inertial to rotating frames, when…

Family boundary curves in rotating systems

1 year ago

Abstract In the framework of the two-dimensional inverse problem of Dynamics with autonomous forces, we discuss the creation of the…

On the closedness of sets with the fixed point property for contractions

1 year ago

Abstract It is proved by examples that there are (connected) non-closed sets with the fixed point property for contractions in…

Inhomogeneous potentials producing homogeneous orbits

1 year ago

Abstract We prove that, in general, a given two-dimensional inhomogeneous potential \(V(x,y)\) does not allow for the creation of homogeneous…

Global complexities for infinite sequences

1 year ago

Abstract AuthorsMira-Cristiana Anisiu Tiberiu Popoviciu Institue of Numerical Analysis, Romanian Academy, Romania Keywords? Paper coordinatesM.-C. Anisiu, Global complexities for infinite…

Special families of orbits for the Hénon-Heiles type potential

1 year ago

Abstract For a Henon-Heiles type potential, with undetermined coefficients, the possibility for a material point to describe a family of…

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