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arXiv 1201.4832math.GN
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序列伪紧空间的积

Products of sequentially pseudocompact spaces

Paolo Lipparini

摘要:

证明了任意多个序列伪紧拓扑空间的乘积仍然是序列伪紧的。序列伪紧性的定义可以(至少)用两种方法给出:我们证明了它们的等价性。本说明的一些结果已载于A.道,J.R.波特河,巴西-地M.斯蒂芬森河,巴西-地G. Woods,其伪紧子空间是闭子集的空间,Appl. Gen. Topol。5(2004),243-264.

英文摘要:

We show that the product of any number of sequentially pseudocompact topological spaces is still sequentially pseudocompact. The definition of sequential pseudocompactness can be given in (at least) two ways: we show their equivalence. Some of the results of the present note already appeared in A. Dow, J. R. Porter, R. M. Stephenson, R. G. Woods, Spaces whose pseudocompact subspaces are closed subsets, Appl. Gen. Topol. 5 (2004), 243-264.

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