Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-26T18:32:37.550Z Has data issue: false hasContentIssue false

Conjugacy Separability of Certain Polygonal Products

Published online by Cambridge University Press:  20 November 2018

Goansu Kim*
Affiliation:
Department of Mathematics, Kangnung National University, Kangnung, 210-702, Korea, e-mail:gskim@knusun.kangnung.ac.kr
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We show that polygonal products of polycyclic-by-finite groups amalgamating central cyclic subgroups, with trivial intersections, are conjugacy separable. Thus polygonal products of finitely generated abelian groups amalgamating cyclic subgroups, with trivial intersections, are conjugacy separable. As a corollary of this, we obtain that the group A1 *a1A2 *a2 • • • *am-1Am is conjugacy separable for the abelian groups Ai.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1996

References

1. Allenby, R. B. J. T. and Tang, C. Y, On the residual finiteness of certain polygonal products, Canad. Math. Bull. (1)32(1989), 1117.Google Scholar
2. Dyer, J. L., Separating conjugates in free-by-finite groups, J. London Math. Soc. (2) 20( 1979), 215221.Google Scholar
3. Dyer, J. L., Separating conjugates in amalgamated free products and HNN extensions, J. Austral. Math. Soc. Ser. A ( 1 ) 29( 1980), 3551.Google Scholar
4. Fine, B. and Rosenberger, G., Conjugacy separability of Fuchsian groups and related questions, Contemp. Math., Amer. Math. Soc. 109(1990), 1118.Google Scholar
5. Formanek, E., Conjugate separability in polycyclic groups, J. Algebra 42( 1976), 1—10.Google Scholar
6. Green, E. R., Graph Products of Groups, Ph. D. thesis, University of Leeds, 1990.Google Scholar
7. Karrass, A., Pietrowski, A., and Solitar, D., The subgroups of polygonal products of groups, unpublished manuscript.Google Scholar
8. Kim, G., Conjugacy separability of certain free product amalgamating retracts, preprint.Google Scholar
9. Kim, G., On polygonal products of finitely generated abelian groups, Bull. Austral. Math. Soc. (3) 45(1992), 453462.Google Scholar
10. Kim, G., Cyclic subgroup separability of generalized free products, Canad. Math. Bull. (3) 36(1993), 296302.Google Scholar
11. Kim, G., McCarron, J., and C. Y Tang, Adjoining roots to conjugacy separable groups, J. Algebra 176(1995), 327345.Google Scholar
12. Kim, G. and C. Y Tang, On the residual finiteness of polygonal products of nilpotent groups, Canad. Math. Bull. (3)35(1992), 390399.Google Scholar
13. Kim, G. and Tang, C. Y, Polygonal products which are residually finite p-groups. In: Group Theory Proc. of the Biennial Ohio State-Dennison Conference, World Sci. Pub. Co., Singapore, 1993, 275—287.Google Scholar
14. Magnus, W., Karrass, A., and Solitar, D., Combinatorial Group Theory, Pure and Applied Math. Vol. XIII, Wiley-Interscience, New York, London, Sydney, 1966.Google Scholar
15. Tang, C. Y., Conjugacy separability of generalized free products of surface groups, J. Pure Appl. Algebra, to appear.Google Scholar
16. Tang, C. Y., Conjugacy separability of generalized free products of certain conjugacy separable groups, Canad. Math. Bull. 38(1995), 120127.Google Scholar