Poincaré map
In mathematics , particularly in dynamical systems , a first recurrence map or Poincaré map , named after Henri Poincaré , is the intersection of a periodic orbit in the state space of a continuous dynamical system with a certain lower-dimensional subspace , called the Poincaré section , transversal to the flow of the system . 
<triplet> Poincaré map <subj> dynamical systems <obj> subclass of <subj> Henri Poincaré <obj> named after <subj> continuous dynamical system <obj> subclass of <triplet> Henri Poincaré <subj> mathematics <obj> field of work