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Na Yu
IAM Ph.D. Student, Department of Mathematics

Complicated Dynamical Behavior of Weakly Coupled Oscillators

We are interested in the dynamical behavior of two weakly coupled oscillators when the individual oscillators are located in between a subcritical Hopf bifurcation and a saddle node which stabilizes the unstable periodic branch generating from the subcritical bifurcation. The intuition tells us that the periodic trajectories of the system stay in a small neighborhood of the limit cycle. However, our numerical simulations show that there are three types of stable solutions: a pair of oscillators with large amplitude; a pair of oscillators one with large amplitude and the other with small amplitude; and the steady state itself.

Na Yu