Perfect images of spaces with a \(\delta \theta\)-base and weakly \(\theta\)- refinable spaces (Q795362)
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scientific article; zbMATH DE number 3861988
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Perfect images of spaces with a \(\delta \theta\)-base and weakly \(\theta\)- refinable spaces |
scientific article; zbMATH DE number 3861988 |
Statements
Perfect images of spaces with a \(\delta \theta\)-base and weakly \(\theta\)- refinable spaces (English)
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1984
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The author continues his study of preservation of base axioms under perfect maps and proves that the classes of spaces with a \(\delta \theta\)-base (weakly \(\theta\)-refinable spaces) are invariant under perfect mappings. The author shows a common approach of this proof with proofs involving other base axioms. This throws light on question 8 posed by the reviewer in Topology Proc. 3, 1-36 (1979; Zbl 0409.54038).
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preservation of base axioms under perfect maps
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\(\delta \theta\)-base
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weakly \(\theta\)-refinable spaces
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