Title of article :
Persistence of Elliptic Lower Dimensional Invariant
Tori for Small Perturbation of Degenerate Integrable
Hamiltonian Systems
Author/Authors :
Xu Junxiang، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 1997
Journal title :
Journal of Mathematical Analysis and Applications
Journal title :
Journal of Mathematical Analysis and Applications