A Bass-Serre theoretic proof of a theorem of Romanovskii and Burns

被引:0
|
作者
Andrew, Naomi [1 ]
机构
[1] Univ Southampton, Math Sci, Bldg 54, Southampton SO17 1BJ, England
关键词
Bass-Serre theory; subgroup separability; FREE-PRODUCTS; SUBGROUPS; GRAPHS;
D O I
10.1080/00927872.2022.2149764
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A well-known theorem of Romanovskii and Burns states that a free product of subgroup separable groups is itself subgroup separable. We provide a proof using the language of immersions and coverings of graphs of groups, due to Bass.
引用
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页码:2004 / 2013
页数:10
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