On the Number of Limit Cycles in a Liénard-Like Perturbation of a Non-linear Quadratic Isochronous Center
DOI:
https://doi.org/10.5890/DNC.2025.03.008Abstract
In this paper we estimate the maximum number of limit cycles that can bifurcate from an integrable non-linear quadratic ischronous center, when perturbed inside a class of Liénard-like polynomial differential systems of arbitrary degree $n$. The main tool employed in this study is the averaging theory of first order.References
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