On local and global aspects of the 1:4 resonance in the conservative cubic Hénon maps
PublisherInstitute of Physics (IOP)
Rights accessOpen Access
We study the 1:4 resonance for the conservative cubic Hénon maps C^± with positive and negative cubic terms. These maps show up different bifurcation structures both for fixed points with eigenvalues¿±i and for 4-periodic orbits. While for C^–, the 1:4 resonance unfolding has the so-called Arnold degeneracy [the first Birkhoff twist coefficient equals (in absolute value) to the first resonant term coefficient], the map C^+ has a different type of degeneracy because the resonant term can vanish. In the last case, non-symmetric points are created and destroyed at pitchfork bifurcations and, as a result of global bifurcations, the 1:4 resonant chain of islands rotates by \pi/4. For both maps, several bifurcations are detected and illustrated.
CitationGonchenko, M. [et al.]. On local and global aspects of the 1:4 resonance in the conservative cubic Hénon maps. "Chaos : an interdisciplinary journal of nonlinear science", 30 Abril 2018, vol. 28, núm. 4, p. 043123-1-043123-15.