| 1. | 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 |
| 2. | A class of random walks with unbounded jumps in random environments
一类随机环境中可跳无穷远点的随机游动 |
| 3. | A polynomial differential system with eight limit cycles at infinity
一个在无穷远点分支出八个极限环的多项式微分系统 |
| 4. | In this article , the center conditions , isochronous center conditions and bifurcation of limit cycles at infinity for a class of fifth system are investigated
摘要研究一类五次系统无穷远点的中心、拟等时中心条件与极限环分支问题。 |
| 5. | Infinity is used as a base point in homemorphic transformation to study infinity for a class of fifth system and isochronous center problems
摘要通过同胚变换把系统无穷远点化为原点，研究了一类五次系统无穷远点中心与拟等时中心问题。 |
| 6. | From chapter 3 to chapter 6 , the center - focus determination and bifurcation of the equator are studied for real planar odd polynomial differential systems
在第三章至第六章，我们研究实平面奇数次多项式微分系统无穷远点(赤道)的中心焦点判定与赤道极限环分支。 |
| 7. | At last , the isochronous center of infinity of a class of quintic systems is studied and all conditions of center and isochronous center are obtained for infin
最后，研究了一类实平面五次系统的无穷远点的等时中心，给出了系统无穷远点为中心和等时中心的全部条件 |
| 8. | In chapter 4 and chapter 5 , complete researches have been done respectively on the center conditions and center integral of a quintic system and a septic system
在第四章和第五章，分别对一类五次系统和七次系统的无穷远点（赤道）的中心条件和中心积分进行了完整研究 |
| 9. | Traditional point photogrammetry , line photogrammetry developed in the present and the infinite point theory are synthetized and sublined to the generalized point photogrammetry
摘要将传统的点摄影测量与当代发展的线摄影测量以及无穷远点理论综合升华为广义点摄影测量理论。 |
| 10. | The latest algorithm is used to derive the periodic constant when the infinity is used as a center , and the isochronous center conditions at infinity for the fifth system are demonstrated
利用最新算法求出了无穷远点作为中心时的周期常数，给出并证明了这类五次系统无穷远点拟等时中心的条件。 |
