| 马丁公理的两个应用 |
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| 引用本文： | 周金元.马丁公理的两个应用[J].四川大学学报(自然科学版),1992,29(4):443-445. |
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| 作者姓名： | 周金元 |
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| 作者单位： | 四川大学数学系 |
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| 摘 要： | 在MA+7CH下证明了:1.正规空间在有限到一闭映射下的逆象未必正规;2.具有严格正的正则有限Bord测度的拓扑空间具有Caliber(?).
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| 关 键 词： | 马丁公理 拓扑空间 映射 |
TWO APPLICATIONS OF MARTIN AXIOM |
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| Zhou Jinyuan.TWO APPLICATIONS OF MARTIN AXIOM[J].Journal of Sichuan University (Natural Science Edition),1992,29(4):443-445. |
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| Authors: | Zhou Jinyuan |
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| Institution: | Department of Mathematics |
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| Abstract: | It is proved, under MA+CH, that the inverse image of a normal space under a two to one closed mapping is not necessarily normal and that each topological space with a strictly positive regular finite Borel measure has calibre 1. |
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| Keywords: | Martin axiom topological space mapping |
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