摘要
王国俊先生曾提出这样一个问题[1]:设{(LXt,δt)}tT是一族LF拓扑空间,(LX,δ)是其乘积空间,Pt:LX→LXt(tT)是投影映射,问Pt是开映射的充要条件是什么?本文在较广范围──形如(LX,)的拓扑分子格──内讨论类似问题,给出了上述问题的一个解答。
Mr. Wang Guojun has raised the following question , Let { (LXt, δt) } t T be LF topologi- cal spaces , (LX ,δ) their product ,Pt :LX→LXt(t T) a projection , then what's the sufficient and necessary condition for the proposition Pt is an open map? This paper discusses a similar problem in a more general frame-topological molecular lattice formalized as (LXt, ) , and gets an answer for the above question .
出处
《模糊系统与数学》
CSCD
1998年第2期21-23,共3页
Fuzzy Systems and Mathematics
基金
河南省科委自然科学基金