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countably metacompact

Last-modified: 2010-08-14 (土) 09:48:55

Definition Edit

  • A topolocial space X is countably metacompact iff every countable open cover of X has a point-finite open refinement covering X

Reference Edit

K.P.Hart, J. Nagata and J.E. Vaughan, Encyclopedia of general topology, Elsevier Science.