摘要
综述定义在一般拓扑空间上的广义实值函数的下(上)半连续的几种定义,并证明它们的等价性。
For generalized real valued functions defined on general topological spaces, this paper gives several definitions of lower (supper) semi-continuous, and proves their equivalence.
出处
《常熟高专学报》
2003年第2期15-17,共3页
Journal of Changshu College
关键词
广义函数
下(上)半连续
等价
generalized real valued functions
Lower (Upper) Semi-continuous