  The theme of the article is the application of the Poincare section method
for visual classification of attractors in the four-dimensional phase space;
the purpose of the study is to introduce consideration of three-dimensional
Poincare sections, and develop an algorithm for their use for classification of
four-dimensional flows by the type of attractors. The article contains the
obtained in three-dimensional Poincare sections traces of 4D attractors,
allowing you to get an idea of their topology, as well as to conduct their
primary classification. It is important that the model discussed in the article
is formulated as universal, which allows one to study the evolution of systems
(if they can be described iterative equations) consisting of subsystems
interacting along arbitrary laws.
