浅谈两类多元分式函数的极限存在性  

A Brief Introduction to Existence of Two Multivariate Fractional Function Limits

作　　者：梁亦孔[1] 

机构地区：[1]上海工程技术大学基础教学学院,上海201620

出　　处：《上海工程技术大学学报》2014年第4期367-369,共3页Journal of Shanghai University of Engineering Science

摘　　要：阐述了二元分式函数在坐标原点的极限问题.针对分子的不同情形,给出了两类二元分式函数的极限存在判别定理,得出了更一般化的判定定理.The limit of fraction function with two variables in the origin of coordinates was described. According to different situations of numerator in a fraction, the criterion theorem on existence of two multivariate fractional function limits are given and the more general theorem is obtained.

关 键 词：二元分式函数 极限存在性 等价条件 

分 类 号：O172.1[理学—数学]