A remark about separation of $K$-analytic sets in the product spaces
A remark about separation of $K$-analytic sets in the product spaces
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关于产品空间中 $K$ 分析集分离的评论
DOI:
10.1090/s0002-9939-1985-0770555-8
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发表时间:
1985
期刊:
影响因子:
--
通讯作者:
Leszek Pi polhkatkiewicz
中科院分区:
文献类型:
--
作者:
Leszek Pi polhkatkiewicz
A direct proof, using only "classical" notions, of a well-known theorem about approximation of coanalytic sets in the plane with "large" sections by Borel sets is given. A generalization of this theorem for hereditarily AT-analytic spaces is also considered.