Corpus ID: 235742637

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

@inproceedings{Andrew2021ABT,
  title={A Bass--Serre theoretic proof of a theorem of Burns and Romanovskii},
  author={Naomi Andrew},
  year={2021}
}
A well known theorem of Burns and Romanovskii 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. 

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