Abstract
In this paper, we consider Liénard systems of the form
where b ∈ ℝ, 0 < |∈| ≪ 1, (α, β, γ) ∈ D ∈ ℝ3 and D is bounded. We prove that for |b| ≫ 1 (b < 0) the least upper bound of the number of isolated zeros of the related Abelian integrals is 2 (counting the multiplicity) and this upper bound is a sharp one.
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Supported by National Natural Science Foundation of China (Grant No. 11271046)
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Zhao, L.Q., Li, D.P. Bifurcations of limit cycles from a quintic Hamiltonian system with a heteroclinic cycle. Acta. Math. Sin.-English Ser. 30, 411–422 (2014). https://doi.org/10.1007/s10114-014-2615-8
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DOI: https://doi.org/10.1007/s10114-014-2615-8