Linear Hamiltonian Hopf bifurcation for point-group-invariant perturbations of the 1:1:1 resonance

Abstract

We consider GtimesR-invariant Hamiltonians H on complex projective 2-space, where G is a point group and R is the time-reversal group. We find the symmetry-induced stationary points of H and classify them in terms of their linear stability. We then determine those points that can undergo a linear Hamiltonian Hopf bifurcation.