Chinese Quarterly Journal of Mathematics ›› 2003, Vol. 18 ›› Issue (3): 286-290.

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On Inverse Limits of Normal  δθ-refinable Spaces

  

  1. College of Information Management ,Chengdu University of Technology ,Chengdu 610059,China
  • Received:2002-04-28 Online:2003-09-30 Published:2024-04-10

Abstract: This paper proves the following results:Let X =l σ,π,Λ} ,|Λ|= λ,and every pro-
jection πσ:X → Xσbe an open and onto mapping.(A)If X is  λ-paracompact and every X σis normal and δθ-refinable,then X is normal and  δθ-refinable;(B)If X is hereditarily  λ-paracompact and every X σis hereditarily normal and hereditarily  δθ-refinable, then X is hereditarily normal and hereditarily δθ-refiable .

Key words: inverse limit; λ-paracompact; normal and , δθ-refinable; hereditarily , normal; hereditarily δθ-refinable .

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