LIMIT CYCLES AND INVARIANT CENTERS FOR AN EXTENDED KUKLES SYSTEM

被引:1
|
作者
Liu, Zhenhai [1 ,2 ]
Szanto, Ivan [3 ]
机构
[1] Guangxi Univ Nationalities, Guangxi Key Lab Univ Optimizat Control & Engn Cal, Nanning 530006, Guangxi, Peoples R China
[2] Guangxi Univ Nationalities, Coll Sci, Nanning 530006, Guangxi, Peoples R China
[3] Univ Tecn Federico Santa Maria, Dept Matemat, Casilla 110-5, Valparaiso, Chile
关键词
limit cycle; center; bifurcation;
D O I
10.18514/MMN.2017.2043
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A class of polynomial systems of odd degree with limit cycles, invariant centers and invariant straight lines, is examined. The limit cycles can be obtain as a bifurcation of a non hyperbolic focus at the origin as Hopf bifurcations. We will also obtain the necessary and sufficient conditions for the critical point at the interior of bounded region to be a center.
引用
收藏
页码:947 / 952
页数:6
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