| 关于θ-加细性 |
| |
| 引用本文： | 周友成.关于θ-加细性[J].数学研究及应用,1983,3(4):27-30. |
| |
| 作者姓名： | 周友成 |
| |
| 作者单位： | 浙江大学 |
| |
| 摘 要： | In this paper the preimage problem and hereditarily of θ-refinability are discussed.The main results are as followsi (1) The preimage of weakly δθ-refinable (δθ-refinable, weakly θ-refinable) space under a continuous closed mapping with f-1(y) Lindelof is weakly δθ-refinable (δθ-refinable, weakly θ-refinable) space; (2) The θ-refinable space with closed Gδ is a hereditarily θ-refinable space.
|
| 收稿时间： | 1982/7/26 0:00:00 |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《数学研究及应用》浏览原始摘要信息 |
| 点击此处可从《数学研究及应用》下载免费的PDF全文 |
|
