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An Improved Criterion for the Unique Existence of the Limit Cycle of a Liénard-type System with One Parameter

  • Autores: Makoto Hayashi
  • Localización: Qualitative theory of dynamical systems, ISSN 1575-5460, Vol. 20, Nº 2, 2021
  • Idioma: inglés
  • DOI: 10.1007/s12346-021-00463-z
  • Enlaces
  • Resumen
    • There are various types in generalized Liénard systems. In this paper, we treat a Liénard-type system in their paper. Though the existence of homoclinic orbits was discussed in their paper, our aim is to present a tool for the unique existence of limit cycles of the system with one parameter. It is an improvement of the criterion in Hayashi (Adv Dyn Syst Appl 14:179–187, 2019). As applications, the examples in the above paper of Hayashi or Villari and Zanolin (Dyn Syst Appl 25:321–334, 2016) are investigated under the more small parameter for the uniqueness of the limit cycle.

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