| 存在两个有界分界线环的二次系统的例子 |
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| 引用本文： | 司成斌.存在两个有界分界线环的二次系统的例子[J].辽宁师范大学学报(自然科学版),1994,17(3):191-194. |
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| 作者姓名： | 司成斌 |
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| 作者单位： | 辽宁师范大学数学系 |
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| 摘 要： |
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| 关 键 词： | 极限环 分界线环 二次系统 |
AN EXAMPLE OF QUADRATIC SYSTEM WITH TWO BOUNDED SEPARATRIX CYCLES |
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| Si Chengbin.AN EXAMPLE OF QUADRATIC SYSTEM WITH TWO BOUNDED SEPARATRIX CYCLES[J].Journal of Liaoning Normal University(Natural Science Edition),1994,17(3):191-194. |
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| Authors: | Si Chengbin |
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| Abstract: | in this parer,the author takes an example of quadratic system with twobounded separatrix cycles,and draw's its global portraits.The example answers theopen question asked by Pro.Ye Yanqian in 1989. |
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| Keywords: | limit cycle separatrix cycle rotated vector field global portraits |
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