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- Arens–Fort_space abstract "In mathematics, the Arens–Fort space is a special example in the theory of topological spaces, named for Richard Friederich Arens and M. K. Fort, Jr.Let X be a set of ordered pairs of non-negative integers (m, n). A subset U of X is open if and only if:it does not contain (0, 0), orit contains (0, 0), and all but a finite number of points of all but a finite number of columns, where a column is a set {(m, n)} with fixed m.In other words, an open set is only "allowed" to contain (0, 0) if only a finite number of its columns contain significant gaps. By a significant gap in a column we mean the omission of an infinite number of points.It is Hausdorff regular normalIt is not: second-countable first-countable metrizable compact".
- Arens–Fort_space wikiPageID "8588347".
- Arens–Fort_space wikiPageLength "1445".
- Arens–Fort_space wikiPageOutDegree "18".
- Arens–Fort_space wikiPageRevisionID "551323116".
- Arens–Fort_space wikiPageWikiLink Category:Topological_spaces.
- Arens–Fort_space wikiPageWikiLink Compact_space.
- Arens–Fort_space wikiPageWikiLink Counterexamples_in_Topology.
- Arens–Fort_space wikiPageWikiLink Dover_Publications.
- Arens–Fort_space wikiPageWikiLink First-countable.
- Arens–Fort_space wikiPageWikiLink First-countable_space.
- Arens–Fort_space wikiPageWikiLink Fort_space.
- Arens–Fort_space wikiPageWikiLink Hausdorff_space.
- Arens–Fort_space wikiPageWikiLink Integer.
- Arens–Fort_space wikiPageWikiLink M._K._Fort,_Jr..
- Arens–Fort_space wikiPageWikiLink Mathematics.
- Arens–Fort_space wikiPageWikiLink Metrizable.
- Arens–Fort_space wikiPageWikiLink Metrization_theorem.
- Arens–Fort_space wikiPageWikiLink Normal_space.
- Arens–Fort_space wikiPageWikiLink Open_set.
- Arens–Fort_space wikiPageWikiLink Regular_space.
- Arens–Fort_space wikiPageWikiLink Richard_Friederich_Arens.
- Arens–Fort_space wikiPageWikiLink Second-countable.
- Arens–Fort_space wikiPageWikiLink Second-countable_space.
- Arens–Fort_space wikiPageWikiLink Springer-Verlag.
- Arens–Fort_space wikiPageWikiLink Springer_Science+Business_Media.
- Arens–Fort_space wikiPageWikiLink Topological_space.
- Arens–Fort_space wikiPageWikiLinkText "Arens–Fort space".
- Arens–Fort_space hasPhotoCollection Arens–Fort_space.
- Arens–Fort_space wikiPageUsesTemplate Template:Citation.
- Arens–Fort_space subject Category:Topological_spaces.
- Arens–Fort_space comment "In mathematics, the Arens–Fort space is a special example in the theory of topological spaces, named for Richard Friederich Arens and M. K. Fort, Jr.Let X be a set of ordered pairs of non-negative integers (m, n).".
- Arens–Fort_space label "Arens–Fort space".
- Arens–Fort_space sameAs Arens-Fort-Raum.
- Arens–Fort_space sameAs Espace_dArens-Fort.
- Arens–Fort_space sameAs m.02790y4.
- Arens–Fort_space sameAs Q642105.
- Arens–Fort_space sameAs Q642105.
- Arens–Fort_space wasDerivedFrom Arens–Fort_space?oldid=551323116.
- Arens–Fort_space isPrimaryTopicOf Arens–Fort_space.