3 resultados para Abelian fields
em Bulgarian Digital Mathematics Library at IMI-BAS
Resumo:
We prove that in quadratic perturbations of generic Hamiltonian vector fields with two saddle points and one center there can appear at most two limit cycles. This bound is exact.
Resumo:
The present paper deals with the KAM-theory conditions for systems describing the motion of a particle in central field.
Resumo:
2000 Mathematics Subject Classification: 11S31 12E15 12F10 12J20.