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Encyclopedia of Compactness Wiki*
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NS compact をテンプレートにして作成
これらのキーワードがハイライトされています:
開始行:
*Definition [#oaca18b7]
A Hausdorff space is called NS compact if there exists some subbase S which satisfies:
++Every cover of X by elements of S has a subbase which consists of at most two elements.
++Whenever two elements {A,B} of S cover X, there exist two disjoint elements {C,D} of S such that A∪C=B∪D=X.
*Remark [#qdd8592b]
-It is an abbreviation for [[nomally supercompact]].
*Reference [#c35ce044]
Zhongqiang Yang, ''Normally supercompact spaces and completely distributive poset'', 数理解析研究所講究録 (RIMS Kokyuroku), 1107: 32-40.
終了行:
*Definition [#oaca18b7]
A Hausdorff space is called NS compact if there exists some subbase S which satisfies:
++Every cover of X by elements of S has a subbase which consists of at most two elements.
++Whenever two elements {A,B} of S cover X, there exist two disjoint elements {C,D} of S such that A∪C=B∪D=X.
*Remark [#qdd8592b]
-It is an abbreviation for [[nomally supercompact]].
*Reference [#c35ce044]
Zhongqiang Yang, ''Normally supercompact spaces and completely distributive poset'', 数理解析研究所講究録 (RIMS Kokyuroku), 1107: 32-40.
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