Classification of Hénon maps with strange attractors via the topology of a stable manifold

21.02.2026 12:00 - 12:45

Jan Boronski (Jagellonian)

Abstract: In an earlier work with Sonja Štimac, we classified (up to conjugacy) the Hénon maps with strange attractors in terms of three invariants that we introduced for them: (a)
kneading sequences, (b) pruned trees, and (c) folding patterns of the unstable manifold of the hyperbolic fixed point X in the attractor. In my talk, I will introduce yet another
way to determine conjugacy classes of these maps, this time purely from the topology of the stable manifold W of X. We consider a region of dissipation D for the Hénon map and study the connected components of D ∩ W. To each such component, we assign a separation type and prove that two Hénon maps are conjugate if and only if
their corresponding components share the same separation type. This is joint work with Sonja Štimac.

Organiser:

H. Bruin, R. Zweimüller

Location:

TBA

Location:
HS 12, OMP 1