具有两条切换线的二次等时系统摄动的极限环数

Communications on Pure & Applied Analysis Pub Date : 1900-01-01 DOI:10.3934/cpaa.2022047

Ai Ke, Maoan Han, Wei-Jian Geng

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引用次数: 3

摘要

In this paper, we give an upper bound (for \begin{document}$ n\geq3 $\end{document}) and the least upper bound (for \begin{document}$ n = 1,2 $\end{document}) of the number of limit cycles bifurcated from period annuli of a quadratic isochronous system under the piecewise polynomial perturbations of degree \begin{document}$ n $\end{document}, respectively. The results improve the conclusions in [19].

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The number of limit cycles from the perturbation of a quadratic isochronous system with two switching lines

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Communications on Pure & Applied Analysis

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