Some new topological cardinal inequalities (Q876522)
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scientific article; zbMATH DE number 5144518
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Some new topological cardinal inequalities |
scientific article; zbMATH DE number 5144518 |
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Some new topological cardinal inequalities (English)
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18 April 2007
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Several well-known inequalities on the cardinality of topological spaces involving the Lindelöf degree or cellularity are improved: these two cardinal invariants are weakened. It is demonstrated by examples that the new inequalities really give better estimates than the classical ones. Five open questions are formulated.
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cardinal functions
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cardinal inequalities
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