Artículos de revistas
Phase space structure of multi-dimensional systems by means of the mean exponential growth factor of nearby orbits
Fecha
2003-12Registro en:
Cincotta, Pablo Miguel; Giordano, Claudia Marcela; Simó, C.; Phase space structure of multi-dimensional systems by means of the mean exponential growth factor of nearby orbits; Elsevier Science; Physica D - Nonlinear Phenomena; 182; 3-4; 12-2003; 151-178
0167-2789
CONICET Digital
CONICET
Autor
Cincotta, Pablo Miguel
Giordano, Claudia Marcela
Simó, C.
Resumen
In this paper we deal with an alternative technique to study global dynamics in Hamiltonian systems, the mean exponential growth factor of nearby orbits (MEGNO), that proves to be efficient to investigate both regular and stochastic components of phase space. It provides a clear picture of resonance structures, location of stable and unstable periodic orbits as well as a measure of hyperbolicity in chaotic domains which coincides with that given by the Lyapunov characteristic number. Here the MEGNO is applied to a rather simple model, the 3D perturbed quartic oscillator, in order to visualize the structure of its phase space and obtain a quite clear picture of its resonance structure. Examples of application to multi-dimensional canonical maps are also included.