Bifurcation curves of limit cycles in some Lienard systems

被引:6
|
作者
López-Ruiz, R
López, JL
机构
[1] Univ Zaragoza, Fac Ciencias, Dept Fis Teor, E-50009 Zaragoza, Spain
[2] Univ Zaragoza, Fac Ciencias, Dept Matemat Aplicada, E-50009 Zaragoza, Spain
来源
关键词
D O I
10.1142/S0218127400000694
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Lienard systems of the form x + Ef(x)x + x = 0, with f(x) an even continuous function, are considered. The bifurcation curves of limit cycles are calculated exactly in the weak (epsilon --> 0) and in the strongly (epsilon --> infinity) nonlinear regime in some examples. The number of limit cycles does not increase when epsilon increases from zero to infinity in all the cases analyzed.
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页码:971 / 980
页数:10
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