A degenerate singularity generating geometric Lorenz attractors

@inproceedings{Dumortier1995ADS,
  title={A degenerate singularity generating geometric Lorenz attractors},
  author={Freddy Dumortier and Hiroshi Kokubu and Hiroe Oka},
  year={1995}
}
A degenerate vector field singularity in R 3 can generate a geometric Lorenz attractor in an arbitrarily small unfolding of it. This enables us to detect Lorenz-like chaos in some families of vector fields, merely by performing normal form calculations of order 3.