Cp(X) and Arhangel'skiǐ's αi-spaces
Cp(X) and Arhangel'skiǐ's αi-spaces
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Cp(X) 和 Arhangel 的 αi 空间
DOI:
10.1016/s0166-8641(97)00218-6
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发表时间:
1998
影响因子:
0.6
通讯作者:
M. Scheepers
中科院分区:
文献类型:
--
作者:
M. Scheepers
Nogura showed that whereas Arhangel'skiǐ's properties α1, α2and α3are preserved by finite products, the property α4is not. It is shown here that for each space X the properties α2, α3and α4are the same for the function space Cp(X) . As a consequence, α4is closed under finite products of such function spaces.