摘要
讨论了弱于可数紧性的若干性质,主要结果是:空间X是可数紧的当且仅当X是闭遗传星紧的;空间X是紧的当且仅当X是仿紧且dfcc的.
Some properties are discussed which are implied by countable compactness.The main results are as follows.(1) Countable compactness is equivalent to closed hereditary starcompactness.(2) A space X is compact if and only if X is paracompact and dfcc.
出处
《辽宁师范大学学报(自然科学版)》
CAS
1994年第3期199-200,共2页
Journal of Liaoning Normal University:Natural Science Edition