Montserrat Corbera and Claudia Valls completely characterize the global phase portraits in the Poincaré disk for all planar Hamiltonian vector fields with linear plus cubic homogeneous terms having a nilpotent saddle at the origin.
Montserrat Corbera and Claudia Valls completely characterize the global phase portraits in the Poincaré disk for all planar Hamiltonian vector … Read More