Das Oszillator-Kepler Problem und die Lie-Algebra.
Die Ähnlichkeitsbewegungen beim allgemeinen ?-Körperproblem
Dinámica no markoviana en complejos de colisión electrón-molécula
Discrete-continuous systems with symmetry.
Do nekonečna v konečném čase
Double collisions for a classical particle system with nongravitational interactions.
Drift and diffusion in phase space
Dynamical aspects of an equilateral restricted four-body problem.
Dynamical systems with Newtonian type potentials
We study the existence of regular periodic solutions to some dynamical systems whose potential energy is negative, has only a singular point and goes to zero at iniìnity. We give sufficient conditions to the existence of periodic solutions of assigned period which do not meet the singularity.
Dynamique des amas d'étoiles