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- P-space abstract "In the mathematical field of topology, a P-space is a topological space in which every countable intersection of open sets is open. An equivalent condition is that countable unions of closed sets are closed. In other words, Gδ sets are open and Fσ sets are closed. The letter P stands for both pseudo-discrete and prime.Different authors restrict their attention to topological spaces that satisfy various separation axioms. With the right axioms, one may characterize P-spaces in terms of their rings of continuous real-valued functions.Special kinds of P-spaces include Alexandrov spaces, in which arbitrary intersections of open sets are open. These in turn include locally finite spaces, which include finite spaces and discrete spaces.".
- P-space wikiPageExternalLink 1990875.
- P-space wikiPageID "41775284".
- P-space wikiPageRevisionID "593033331".
- P-space first "K.P.".
- P-space id "P-space".
- P-space last "Hart".
- P-space title "P-space".
- P-space urlname "pspace".
- P-space subject Category:General_topology.
- P-space subject Category:Properties_of_topological_spaces.
- P-space comment "In the mathematical field of topology, a P-space is a topological space in which every countable intersection of open sets is open. An equivalent condition is that countable unions of closed sets are closed. In other words, Gδ sets are open and Fσ sets are closed. The letter P stands for both pseudo-discrete and prime.Different authors restrict their attention to topological spaces that satisfy various separation axioms.".
- P-space label "P-space".
- P-space sameAs m.0_gz6rs.
- P-space sameAs Q17118682.
- P-space sameAs Q17118682.
- P-space wasDerivedFrom P-space?oldid=593033331.
- P-space isPrimaryTopicOf P-space.