UNIVERSAL SPACES FOR CLOSED IMAGES OF SIGMA-DISCRETE METRIC-SPACES

被引：2

作者：

TSUDA, K ^{[1
]}

机构：

[1] EHIME UNIV,DEPT MATH,MATSUYAMA,EHIME 790,JAPAN

来源：

CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES | 1994年 / 37卷 / 03期

关键词：

UNIVERSAL SPACE; SIGMA-DISCRETE SPACE; CLOSED MAP; SEMICANONICAL COVERS;

D O I：

10.4153/CMB-1994-060-0

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

We present a proof of a theorem announced by van Douwen concerning existences of universal spaces for certain closed images of sigma-discrete metric spaces.

引用

页码：419 / 427

页数：9

共 50 条

[21] ON TYPE OF METRIC-SPACES
BOURGAIN, J
MILMAN, V
WOLFSON, H
TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY, 1986, 294 (01) : 295 - 317
[22] RETRACTS IN METRIC-SPACES
PASICKI, L
PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 1980, 78 (04) : 595 - 600
[23] POINTLESS METRIC-SPACES
GERLA, G
JOURNAL OF SYMBOLIC LOGIC, 1990, 55 (01) : 207 - 219
[24] NETWORKLIKE METRIC-SPACES
HOOKER, JN
DISCRETE MATHEMATICS, 1988, 68 (01) : 31 - 43
[25] ON A THEOREM IN METRIC-SPACES
VARADARAJAN, VS
RAO, RR
ANNALS OF MATHEMATICAL STATISTICS, 1958, 29 (02): : 612 - 613
[26] ISOTROPIC METRIC-SPACES
NIKOLAEV, IG
DOKLADY AKADEMII NAUK SSSR, 1989, 305 (06): : 1314 - 1317
[27] ON FUZZY METRIC-SPACES
LIANG, JH
KEXUE TONGBAO, 1984, 29 (02): : 155 - 158
[28] IN WHICH METRIC-SPACES ARE PARALLEL BODIES OF CLOSED-SETS CLOSED
BEER, G
PROCEEDINGS OF THE EDINBURGH MATHEMATICAL SOCIETY, 1983, 26 (JUN) : 265 - 273
[29] OPEN FINITE-TO-ONE IMAGES OF METRIC-SPACES
CHABER, J
TOPOLOGY AND ITS APPLICATIONS, 1982, 14 (03) : 241 - 246
[30] METRIZATION OF CLOSED IMAGES OF METRIC SPACES
HARLEY, PW
NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 19 (05): : A607 - &

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