Abstract
In this article we use the Lambert function in order to study a family of integrable generalized Liénard equations \(X_f\) which display a center. We first prove a conjugation lemma inside a continuum of nested periodic orbits. Then we deduce an explicit operator of Gelfand–Leray associated with the Hamiltonian of equation \(X_f\). Afterwards, we provide a generating family for the associated Petrov module. Finally, by using the Lambert function, we study the monotonicity of the Abelian integral of this generating family’s elements.
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Mégret, L. Studies of the Petrov Module for a Family of Generalized Liénard Integrable Systems. Qual. Theory Dyn. Syst. 17, 519–539 (2018). https://doi.org/10.1007/s12346-017-0250-3
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DOI: https://doi.org/10.1007/s12346-017-0250-3