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- W2945947346 abstract "In the present study we consider planar piecewise linear vector fields with two zones separated by the straight line $x=0$. Our goal is to study the existence of simultaneous crossing and sliding limit cycles for such a class of vector fields. First, we provide a canonical form for these systems assuming that each linear system has center, a real one for $y<0$ and a virtual one for $y>0$, and such that the real center is a global center. Then, working with a first order piecewise linear perturbation we obtain piecewise linear differential systems with three crossing limit cycles. Second, we see that a sliding cycle can be detected after a second order piecewise linear perturbation. Finally, imposing the existence of a sliding limit cycle we prove that only one additional crossing limit cycle can appear. Furthermore, we also characterize the stability of the higher amplitude limit cycle and of the infinity. The main techniques used in our proofs are the Melnikov method, the Extended Chebyshev systems with positive accuracy, and the Bendixson transformation." @default.
- W2945947346 created "2019-05-29" @default.
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- W2945947346 date "2020-02-10" @default.
- W2945947346 modified "2023-10-15" @default.
- W2945947346 title "Simultaneous occurrence of sliding and crossing limit cycles in piecewise linear planar vector fields" @default.
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- W2945947346 doi "https://doi.org/10.1080/14689367.2020.1722064" @default.
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