
doi: 10.3390/math11214468
In this paper, we construct approximate normal forms of the double-zero bifurcation for a two-parameter jerk system exhibiting a non-degenerate fold bifurcation. More precisely, using smooth invertible variable transformations and smooth invertible parameter changes, we obtain normal forms that are also jerk systems. In addition, we discuss some of their parametric portraits.
jerk systems, normal forms, QA1-939, double zero bifurcations, Mathematics
jerk systems, normal forms, QA1-939, double zero bifurcations, Mathematics
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