2-countably compact

定義

• A bitopological space (X,τ_1,τ_2) is 2-countably compact if the topological space (X,τ_2)) is countably compact.

出典

• Dvalishvili, B. P.,Bitopological spaces: theory, relations with generalized algebraic structures,and applications,North-Holland Mathematics Studies, 199. Elsevier Science B.V., Amsterdam, 2005.