Topology Proceedings Document # baal-09
topology proceedings
Topology Proceedings 26 No. 1 (2001-2002), pp. 83-96

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Cardinal invariants related to star covering properties

Jiling Cao, J. Kim, T. Nogura and Y. Song

We investigate cardinal invariants which are related to star covering properties of a topological space. We compare them in the class of Tychonoff spaces and figure out how big the gaps between them are. In particular, we show that in most cases a cardinal invariant has no upper bounds when the cardinal invariants smaller than it are \aleph0.

Keywords: Discrete cellularity, L-star-Lindelöf number, n-star-Lindelöf number, cellularity
Mathematics Subject Classification: 54A25, 54B10, 54D20, 54G20

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Topology Proceedings, Volume 26 No. 1 (2001-2002)
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Copyright © 2002 Auburn University and Topology Atlas | Date: November 1, 2002.