Abstract
This manuscript is to study codimension-2 bifurcations for coupled nonlinear BVP oscillators with hard characteristics. Sufficient conditions are given for the model to demonstrate Hopf, Bogdanov–Takens (BT), double Hopf, and fold-Hopf bifurcations. By computing normal forms of those bifurcations, bifurcation diagrams such as Hopf, homoclinic, double limit cycle, and torus bifurcations are obtained. Some examples are given to confirm the theoretical results.
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