A Bass-Serre theoretic proof of a theorem of Romanovskii and Burns
A Bass-Serre theoretic proof of a theorem of Romanovskii and Burns
复制标题
Romanovskii 和 Burns 定理的 Bass-Serre 理论证明
DOI:
10.1080/00927872.2022.2149764
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发表时间:
2022
影响因子:
0.7
通讯作者:
Andrew N
中科院分区:
文献类型:
--
作者:
Andrew N
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.