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Perfect images of spaces with a δθ-base and weakly θ-refinable spaces |
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| Authors: | Dennis K Burke |
| Institution: | Department of Mathematics, Miami University, Oxford OH 45056, USA |
| Abstract: | The main result shows that the class of spaces with a δθ-base is invariant under perfect mappings. By using related techniques it is also shown that the class of weakly θ-refinable spaces is preserved by perfect images. |
| Keywords: | Primary: 54C10 Secondary: 54D18 54E99 Perfect mappings δθ-base weakly θ-refinable |
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