PREIMAGES OF SPACES HAVING A BASE OF COUNTABLE ORDER

被引：0
|
作者：
GRABNER, EM
机构：
来源：
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES | 1992年 / 659卷
关键词：
BASE OF COUNTABLE ORDER; PRIMITIVE BASE; PERFECT MAPPING; QUASIPERFECT MAPPING;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The main theorem characterizes the quasi-perfect and perfect preimages of T1-spaces having a base of countable order. The preimages of T1-spaces having a base of countable order are connected with the preimages of T1-spaces having a primitive base under the same type of mappings.
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页码：78 / 85
页数：8
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