Coverings of groups and types

被引:5
|
作者
Newelski, L [1 ]
Petrykowsk, M [1 ]
机构
[1] Univ Wroclaw, Inst Math, PL-50384 Wroclaw, Poland
来源
JOURNAL OF THE LONDON MATHEMATICAL SOCIETY-SECOND SERIES | 2005年 / 71卷
关键词
D O I
10.1112/S0024610704005976
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Assume that G is a group covered by countably many sets X-n, n < omega. It is proved that G is generated in two or three steps by a small number of the sets X-n. These results are generalized for countable coverings of types and countable colourings of graphs.
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页码:1 / 21
页数:21
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