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Difference between revisions of "Density (of a topological space)"

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(cite Rudin (1975))
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One of the cardinal characteristics (cf. [[Cardinal characteristic|Cardinal characteristic]]).
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''density character''
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One of the [[cardinal characteristic]]s of a [[topological space]]. The minimal [[cardinality]] of a [[dense set]]
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====References====
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* Mary Ellen Rudin, ''Lectures on Set Theoretic Topology'', American Mathematical Society (1975) ISBN 0-8218-1673-X

Revision as of 21:27, 4 December 2014

2020 Mathematics Subject Classification: Primary: 54A25 [MSN][ZBL]

density character

One of the cardinal characteristics of a topological space. The minimal cardinality of a dense set.

References

  • Mary Ellen Rudin, Lectures on Set Theoretic Topology, American Mathematical Society (1975) ISBN 0-8218-1673-X
How to Cite This Entry:
Density (of a topological space). Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Density_(of_a_topological_space)&oldid=16284