Chiellini Hamiltonian Liénard differential systems
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We characterize the centers of the Chiellini Hamiltonian Li´enard second-order differential equations x 0 = y, y 0 = −f(x)y − g(x) where g(x) = f(x)(k − α(1 + α) R f(x)dx) with α, k ∈ R. Moreover we study the phase portraits in the Poincar´e disk of these systems when f(x) is linear.
Is part ofElectronic Journal of Differential Equations, 2019, vol. 2019, núm. 71, p. 1–8.
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