关于∮性质的σ-积  

ON σ-PRODUCTS OF ■-PROPERTY

作　　者：戴保华[1] 

机构地区：[1]青海师范大学数学系,西宁810007

出　　处：《青海师专学报》1997年第2期15-16,共2页Journal of Qinghai Junior Teachers' College

摘　　要：拓扑性质是否具有可积性，这一直是拓扑学中极为重要的问题，有时甚至有限可积也是极为宝贵的。性质不具有有限可积性。本文研究了另一种重要的乘积空间σ-积中的性质，证明了性质的σ-积定理。In general topology,it is veryimportant whether a topological property has productive property,and the finite preductive property is at time even very valuable. M-property has not the finite productive property. In this paper,we study property inσ-products which is also a kind of important product space,and has a result about theσ-products of property.

关 键 词：Σ-积 ζ-性质 拓扑性质 点集拓扑 

分 类 号：O189.11[理学—数学]