INVESTIGADORES
MESTRE Martin Federico
artículos
Título:
Analytical relation between two chaos indicators: FLI and MEGNO
Autor/es:
M. F. MESTRE, P. M. CINCOTTA, C. M. GIORDANO
Revista:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY: LETTERS
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Lugar: Hoboken, New Jersey; Año: 2011 vol. 414 p. 100 - 103
ISSN:
1745-3933
Resumen:
We report an intrinsic relation between the mean exponential growth factor of nearby orbits (MEGNO) and the fast Lyapunov indicator (FLI), two variational methods that have been widely applied to stability issues in astronomy. For both continuous-time and discrete-time systems, we arrive at an analytic formula that expresses the MEGNO in terms of the FLI and its time-average. This connection, unknown for more than 10 years, allows us to understand the differences and similarities in the performance of both indicators.
