多元函数的两个性质及其应用  

Two Properties in Function of Several Variables

作　　者：吴世玕[1] 杜红霞[2] 

机构地区：[1]江西理工大学理学院,江西赣州341000 [2]江西理工大学机电工程学院,江西赣州341000

出　　处：《江西理工大学学报》2007年第4期58-60,共3页Journal of Jiangxi University of Science and Technology

摘　　要：讨论了多元函数与某个变量无关的充分条件及多元函数的变量能分离的充分必要条件,并给出随机变量相互独立的一个充分必要条件.In this paper, the sufficient condition that the function of several variables has nothing to do with its some variable, the necessary and sufficient condition that the variables of function of several variables can be separated each other are discussed. Then a necessary and sufficient condition that the random variables are independent mutually is given.

关 键 词：连通区间 偏导数 分离变量 相互独立 

分 类 号：O171[理学—数学]