| 1. | Limit cycle problem for a non - li 233 ; nard type cubic system
型方程周期解的存在性
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| 2. | Periodic solutions of li nard differential equations with delay
型方程的周期解
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| 3. | Existence of the limit cycles for li 233 ; nard equation
方程极限环的不存在性
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| 4. | Global stability of zero solution of generalized li nard system
系统零解的全局渐近稳定性
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| 5. | Limit cycles of li 233 ; nard system with fine foci
方程多个极限环的计算
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| 6. | Notes on periodic solutions of certain high order li 233 ; nard equation
型方程周期解的注记
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| 7. | On the uniqueness of limit cycle of the general li 233 ; nard equation
方程极限环的惟一性问题
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| 8. | The existence and uniqueness of limit cycles for general li 233 ; nard system
分岔极限环的唯一性
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| 9. | On existence and uniqueness of periodic solution of li nard equation
方程周期解的存在性与唯一性
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| 10. | A perturbation - incremental method for limit cycles of li 233 ; nard equation
型三次系统的极限环问题
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