摘要
1引言在文[1]中,作者给出了Ortho-紧性质在逆运算下保持不变的研究结果。
The following result is proved: Let X be the inverse limit of an inverse system { Xα, πβ^α, A } and ∧ the cardinal number of ∧. Suppose each projection πα : X→Xα is an open and onto map and X is hereditarily λ-paracompact. If each Xα is hereditarily Orthocampact,then X is hereditarily Orthocampact.
出处
《四川大学学报(自然科学版)》
CAS
CSCD
北大核心
2006年第5期1154-1156,共3页
Journal of Sichuan University(Natural Science Edition)
关键词
逆极限
紧空间
遗传
逆运算
inverse limits
Orthocampact
hereditarily Orthocampact