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Increasing Chains and Discrete Reflection of Cardinality by Spadaro, Santi is a scholarly article available to read on EtoBox.

What is Increasing Chains and Discrete Reflection of Cardinality about?

Combining ideas from two of our previous papers, we refine Arhangel'skii Theorem by proving a cardinal inequality of which this is a special case: any increasing union of strongly discretely Lindelof spaces with countable free sequences and countable pseudocharacter has cardinality at most continuum. We then give a partial positive answer to a problem of Alan Dow on reflection of cardinality by closures of discrete sets.

Author

Spadaro, Santi

Published

2015

Language

EN