Author(s): WANG Yan-jun
Pages: 531-533,575
Year: 2008 Issue:  4
Journal: JIANGXI SCIENCE
Keyword:  Lω-拓扑空间; ωδα-远域族; ωδ-Lindelǒff性质; 弱ωδ-Lindelǒff性质;
Abstract: 在Lω-空间中引入ωδ-Lindelǒff性质和弱ωδ-Lindelǒff性质的概念,证明了ωδ-Lindelǒff性质和弱ωδ-Lindelǒff性质是ωδ-闭遗传的,并且在(ω1,ω2)δ-同胚映射下,它们是弱拓扑不变性质.