摘要
应用函数列的极限与函数的极限交换次序定理,研究了二元函数的二重极限与它的两个累次极限的关系定理,研究了二元函数的两个二阶混合偏导数可交换次序定理.
By using the limits of functions and the exchange limit theorem, we considered the relationship between the double limit of function with two variables and its repeated limits. At the same time we studied the exchange order theorem of its two second order mixed partial derivative.
出处
《河南科学》
2008年第10期1165-1168,共4页
Henan Science
基金
河南省软科学基金资助项目(0513011110)
北京市级精品课程建设项目基金资助
关键词
函数列的极限
极限交换次序定理
累次极限
混合偏导数
the limit of functions
the repeated exchange limit theorem
repeated limit
mixed partial derivative
