| 一类5次系统高次奇点的中心焦点判定 |
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| 引用本文： | 刘一戎,章丽娜. 一类5次系统高次奇点的中心焦点判定[J]. 浙江师范大学学报(自然科学版), 2008, 31(1): 17-22 |
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| 作者姓名： | 刘一戎 章丽娜 |
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| 作者单位： | 浙江师范大学,数理与信息工程学院,浙江,金华,321004 |
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| 摘 要： | 对一类具高次奇点O（0，0）的实平面5次微分自治系统，计算出原点的前9个焦点量公式；同时，给出了一类5次系统的前7个赤道环量．
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| 关 键 词： | 高次奇点 无穷远点 焦点量 赤道环量 |
| 文章编号： | 1001-5051（2008）01-0017-06 |
| 收稿时间： | 2007-11-06 |
| 修稿时间： | 2007-11-28 |
Determining center or focus for a class of systems of order 5 with a higher-order critical point |
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| LIU Yirong,ZHANG Lina. Determining center or focus for a class of systems of order 5 with a higher-order critical point[J]. Journal of Zhejiang Normal University Natural Sciences, 2008, 31(1): 17-22 |
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| Authors: | LIU Yirong ZHANG Lina |
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| Affiliation: | (College of Mathematics, Physics and Information Engineering, Zhefiang Normal University, Jinhua Zhejiang 321004, China ) |
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| Abstract: | For a class of real planar differential point, the first 9 focal values were evaluated. As autonomous systems of order 5 with a higher-order critical a corollary, the first 7 values of equator cycle for a class of systems of order 5 were presented. |
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| Keywords: | higher-order critical point infinite point focal values values of equator cycle |
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