The free product of residually finite groups amalgamated along retracts is residually finite
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- by James Boler and Benny Evans
- Proc. Amer. Math. Soc. 37 (1973), 50-52
- DOI: https://doi.org/10.1090/S0002-9939-1973-0306329-3
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Abstract:
It is shown that residual finiteness is preserved by the generalized free product provided that the amalgamated subgroups are retracts of their respective factors. This result is applied to knot groups. The outcome is that the question of residual finiteness for knot groups need only be answered for prime knots.References
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Bibliographic Information
- © Copyright 1973 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 37 (1973), 50-52
- MSC: Primary 20E25
- DOI: https://doi.org/10.1090/S0002-9939-1973-0306329-3
- MathSciNet review: 0306329