A topological proof of the residual fini
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Marvin Tretkoff
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Article
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1973
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John Wiley and Sons
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English
β 293 KB
The purpose of the present paper is to give a topological proof of the fact that the free product of two residually finite groups with a finite subgroup amalgamated is itself residually finite. This theorem, which is due to G. Baumslag [2], is a generalization of the corresponding result for ordinar