OBSTRUCTIONS TO EXTENSIONS AND HOMOTOPIES

被引：19

作者：

OLUM, P

机构：

来源：

ANNALS OF MATHEMATICS | 1950年 / 52卷 / 01期

关键词：

D O I：

10.2307/1969510

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

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页码：1 / 50

页数：50

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