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5. A NOTE ON PERKO’S 'ON LIMIT CYCLES OF QUADRATIC SYSTEM IN E~2'

A NOTE ON PERKO’S 'ON LIMIT CYCLES OF QUADRATIC SYSTEM IN E~2'

来源 :科学通报：英文版 | 被引量 : 0次 | 上传用户：nisshei5zd

【摘 要】

：

<正> In his paper On rotated veotor fields and the global behavior of limit cycles of a class of quadratic system in the plane (J. Diff. Eqs., 18(1975), 63—86)

【作 者】

：

任永泰 

【机 构】

：

NortheastNormalUniversity

【出 处】

：

科学通报：英文版

【发表日期】

：

1982年6期

【关键词】

：

QUADRATIC 油竹 atmos 

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论文部分内容阅读

<正> In his paper On rotated veotor fields and the global behavior of limit cycles of a class of quadratic system in the plane (J. Diff. Eqs., 18(1975), 63—86), L. Perko studied the properties of a semicomplete family (mod P).

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