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Author:
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Issue:
Coapproximation in Linear Spaces
Author(s):
NI Renxing
Pages:
418
-
422
Year:
2002
Issue:
3
Journal:
JOURNAL OF MATHEMATICAL RESEARCH AND EXPOSITION
Keyword:
局部凸空间
;
强f-Kolmogorov集
;
(强)f-共逼近
;
赋范线性空间
;
Abstract:
本文研究了在局部凸空间和赋范线性空间中的(f-)共逼近和强(f-)共逼近的一些性质,给出了f-共逼近、强f-共逼近和强f-Kolmogorov集的特征定理.并举例说明G.S.Rao[3]的两主要定理是不正确的,同时作了相应的更正.所得的结果中的部分推广和改进了Song[1,2]、Rao[3]和Narang[6]等人的相应结果.
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