Coexistence of small and large amplitude limit cycles of polynomial differential systems of degree four

被引:2
作者
Saez, Eduardo
Stange, Eduardo
Szanto, Ivan
机构
[1] Univ Tecn Federico Santa Maria, Dept Matemat, Valparaiso, Chile
[2] Univ Valparaiso, Inst Math & Fis, Valparaiso 5030, Chile
关键词
stability; limit cycle; center; bifurcation;
D O I
10.1007/s10587-007-0047-7
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A class of degree four differential systems that have an invariant conic x(2) + Cy-2 = 1, C epsilon R, is examined. We show the coexistence of small amplitude limit cycles, large amplitude limit cycles, and invariant algebraic curves under perturbations of the coefficients of the systems.
引用
收藏
页码:105 / 114
页数:10
相关论文
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