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On the Residual Finiteness of Certain Polygonal Products

Published online by Cambridge University Press:  20 November 2018

R. B. J. T. Allenby
Affiliation:
University of Leeds, Leeds, England
C. Y. Tang
Affiliation:
University of Waterloo, Waterloo, Ontario, Canada
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Abstract

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We give examples to show that unlike generalized free products of groups (g.f.p.) polygonal products of finitely generated (f.g.) nilpotent groups with cyclic amalgamations need not be residually finite (R) and polygonal products of finite p-groups with cyclic amalgamations need not be residually nilpotent. However, polygonal products f.g. abelian groups are R, and under certain conditions polygonal products of finite p-groups with cyclic amalgamations are R.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1989

References

1. Baumslag, G., on the residual finit eness of generalized free products of nilpotent groups, Trans. Amer. Math. Soc. 106 (1963), pp. 193209.Google Scholar
2. Brunner, A. M., Frame, M. L., Lee, Y. W. and N. J. Wielenberg, Classifying the torsion-free subgroups of the Picard group, Trans. Amer. Math. Soc. 282 (1984), pp. 205235.Google Scholar
3. Burns, R. G., A note on free groups, Proc. Amer. Math. Soc. 23 (1969), pp. 1417. Google Scholar
4. Hall, M., Jr., Coset representations in free groups, Trans. Amer. Math. Soc, 67 (1949), pp. 421432. Google Scholar
5. Higman, G., Amalgam of p-groups, J. of Algebra 1 (1964), pp. 301305. Google Scholar
6. Karrass, A., Pietrowski, A. and Solitar, D., The subgroups of polygonal products of groups, unpublished manuscript.Google Scholar
7. Neumann, B. H., An essay on free products of groups with amalgamations, Philos. Trans. Roy. Soc. London, Ser. A 246 (1954), pp. 503554.Google Scholar
8. Neumann, B. H. and H. Neumann, A contribution to the embedding theory of group amalgams, Proc. London Math. Soc. (3) 3 (1953), pp. 243256. Google Scholar
9. Wiegold, J., Nilpotent products of groups with amalgamations, Publ. Math. Debrecen 6 (1959), pp. 131168. Google Scholar