A Study on the double crisis vertex in a two-parameter plane
两参量平面上双重激变尖点研究

By means of GCMD method, a double crisis of sinusoidally forced oscillators is studied. A double crisis vertex in a two parameter plane is determined, at which two curves of boundary crisis and two curves of interior crisis meet and four distinct crises coincide. Physically, small parameter perturbation (noise) about such a vertex induces drastic changes in the dynamical behaviour.