Hemicompact space

In mathematics, in the field of topology, a topological space is said to be hemicompact if it has a sequence of compact subsets such that every compact subset of the space lies inside some compact set in the sequence. Clearly, this forces the union of the sequence to be the whole space, because every point is compact and hence must lie in one of the compact sets.

单词	hemicompact
释义	hemicompact 英汉-汉英词典 adj. 半紧的词组 \| 习惯用语您要查找的是不是： impeachment n. 弹劾；控告；怀疑；指摘 microcomputer n. 微型计算机 subcompact n. 超小型汽车 compaction n. 压紧,紧束的状态网络短语: hemicompact space 半紧空间 hemicompact spaces hemicompact空间英语百科 Hemicompact space In mathematics, in the field of topology, a topological space is said to be hemicompact if it has a sequence of compact subsets such that every compact subset of the space lies inside some compact set in the sequence. Clearly, this forces the union of the sequence to be the whole space, because every point is compact and hence must lie in one of the compact sets.
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hemicompact

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网络短语:

Hemicompact space