Limit cycles for a class of fourth-order differential equations
In this article, we study the limit cycles of the fourth-order differential equation [image omitted] where ε is a small enough parameter and [image omitted] is a 2-periodic function in the variable t.
Keywords: averaging theory; fourth-order differential equation; limit cycle; perturbation of centres
Document Type: Research Article
Affiliations: 1: Departament de Matematiques, Universitat Autonoma de Barcelona, Barcelona, Spain 2: Department of Mathematics, Annaba University, Annaba 23000, Algeria
Publication date: 01 December 2009
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