点在闭轨上的一个必要条件  

A Necessary Condition of Points be Located at Closed Trajectory

作　　者：侯劲[1] 

机构地区：[1]湖北三峡学院理工学院数学系,湖北宜昌443000

出　　处：《湖北三峡学院学报》2000年第5期5-11,共7页Journal of China Three Gorges University(Humanities & Social Sciences)

摘　　要：本文引入梭动导数的概念 ;运用梭动导数这一工具 ,给出了点在闭轨上的一个必要条件 。In this paper we introduced the concept of shuttling derivative, and gave a necessary condition of points be located at closed trajectory by means of shuttling derivative. It found a new way to judge the numbers of closed trajectories or limit cyoles.

关 键 词：轨线函数 梭动导数 闭轨函数 闭轨恒等式 

分 类 号：O175.12[理学—数学]