| 1. | Limit cycles ; differential systems ; abelian integrals 极限环微分系abel积分 |
| 2. | Limit cycles analysis to a class of cubic lienard equations 方程的极限环分析 |
| 3. | The limit cycles for type equation of quadratic differential systems 类方程的极限环 |
| 4. | Existence of the limit cycles for li 233 ; nard equation 方程极限环的不存在性 |
| 5. | On limit cycles of type i equation of quadraticdifferential systems 类方程的极限环之二 |
| 6. | New model for secondary bifurcation to large limit cycles 二次分支到大极限环的一个新模型 |
| 7. | Limit cycles of li 233 ; nard system with fine foci 方程多个极限环的计算 |
| 8. | Limit cycles of infinity in a quintic polynomial system 一类五次多项式系统无穷远点的极限环 |
| 9. | On the uniqueness of limit cycle of the general li 233 ; nard equation 方程极限环的惟一性问题 |
| 10. | Creation and disappearance of limit cycles in quadratic system 0类二次系统极限环的产生与消失 |