Abstract
Using topological methods we give a proof that the free product of two strict subgroup separable groups with infinite cyclic amalgamation is subgroup separable.
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Aab, M., Rosenberger, G. Subgroup separable free products with cyclic amalgamation. Results. Math. 28, 185–194 (1995). https://doi.org/10.1007/BF03322251
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DOI: https://doi.org/10.1007/BF03322251