We perform a topological analysis of homoclinic chaos in an experimental dynamical system: the glow discharge (GD). The geometrical model accounting for the stretching and folding mechanisms in the GD attractor is the horseshoe template. The presence of a homoclinic orbit induces a structure on this template, allowing us to predict the qualitative dynamical behavior as the GD approaches homo clinicity.
Physical Review. E, Statistical physics, plasmas, fluids and related interdisciplinary topics. New York. Vol. 51, no. 5, part A (May 1995), p. 4165-4168