... 下半连续函数 lower semicontinuous function 下半连续分解 lower semicontinuous decomposition 下半连续包 continuous hull ...
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Thus, the normality of space is conpletely characterized by lower semicontinuous function and upper semicontinous function.
这样空间的正规性就完全可以用上半连续函数和下半连续函数来刻画。
参考来源 - 链与格上连续映射的插入性质·2,447,543篇论文数据,部分数据来源于NoteExpress
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