Meta—Lindeloef空间的性质 |
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引用本文: | 刘德金.Meta—Lindeloef空间的性质[J].德州学院学报,2008,24(4):18-20. |
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作者姓名: | 刘德金 |
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作者单位: | 德州学院数学系,山东德州253023 |
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摘 要: | 对meta—Lindeloef空间的性质进行了探讨.给出了X是meta—Lindeloef空间的一个等价条件:X的每一开覆盖哑都有点可数的加细覆盖。E使对每一个x∈X,x∈Int(st(z,v));证明了meta—Lindeloef空间被可数对一开映射保持;在可分空间中meta—Lindeloef空间与Lindeloef空间等价.
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关 键 词: | Lindeloef空间 meta—Lindeloef空间 点可数 可数对一开映射 |
Some propertis of meta-Lindeloef space |
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Institution: | LIU De - jin (Department of Mathematics Dezhou University 253023) |
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Abstract: | It gives some properties of meta-Lindorff space. The main result of it proves space is equivalent to that for each open cover u of X has an point countable refinement that meta-Lindeloef V,w.hich for every x ∈ X , x∈ Int(st(x,V); the meta-Lindeloef space is preserved by countable to one open mapping; the meta-Lindeloef space and Lindel6f space are equivalent in the separable space. |
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Keywords: | Lindeloef space meta-Lindeloef space point countable countable to one open mapping |
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