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Detremine
Detremine center or focus for plane differential system
Distinguish center and focus for plane differential system 背景 对于一个平面光滑微分系统 \[\begin{equation} \dot{x}=f(x,y),~~~ \dot{y}=g(x,y). \end{equation} \]假设 \ ......
differential
Detremine
center
system
focus
更新时间 2024-01-04
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