Constructing aD, non-D-spaces |
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Authors: | Dániel Tamás Soukup |
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Institution: | Eötvös Loránd University, Hungary |
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Abstract: | We introduce a general method to construct 0-dimensional, scattered T2 spaces which are not linearly D. The construction is used to show that there are aD, non-D-spaces, answering a question of Arhangel?skii. The latter example is achieved using Shelah?s club guessing principles. |
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Keywords: | 54D20 03E75 |
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