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7 p, 395.3 KB Periodic solutions of a class of second-order differential / Bouderbala, Zeyneb (University of Annaba. Department of Mathematics (Algeria)) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Makhlouf, Ammar (University of Annaba. Department of Mathematics (Algeria))
We study the periodic solutions of the second-order differential equations of the form ¨ x+3x˙ x+x3 +F(t)(˙ x+x2)+G(t)x+H(t) = 0, where the functions F(t), G(t) and H(t) are periodic of period 2 π in the variable t.
2016 - 10.4236/am.2016.73021
Applied Mathematics, Vol. 7, Num. 3 (February 2016) , p. 227-232
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