Abstract
The dynamics of the four dissipatively coupled van der Pol oscillators is considered. Lyapunov chart is presented in the parameter plane. Its arrangement is discussed. We discuss the bifurcations of tori in the system at large frequency detuning of the oscillators. Here are quasi-periodic saddlenode, Hopf and Neimark-Sacker bifurcations. The effect of increase of the threshold for the ”amplitude death” regime and the possibilities of complete and partial broadband synchronization are revealed.
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