TY - JOUR A1 - Emelianova, Yulia P. A1 - Kuznetsov, A. P. A1 - Turukina, Ludmila V. T1 - Quasi-periodic bifurcations and "amplitude death" in low-dimensional ensemble of van der Pol oscillators JF - Modern physics letters : A, Particles and fields, gravitation, cosmology, nuclear physics N2 - 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 saddle-node, 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. KW - Chain of van der Pol oscillators KW - Bifurcations of tori KW - Amplitude death KW - Broadband synchronization Y1 - 2014 U6 - https://doi.org/10.1016/j.physleta.2013.10.049 SN - 0375-9601 SN - 1873-2429 VL - 378 IS - 3 SP - 153 EP - 157 PB - Elsevier CY - Amsterdam ER -