Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-26T01:04:54.040Z Has data issue: false hasContentIssue false

On groups associated to a knot

Published online by Cambridge University Press:  24 October 2008

B. Zimmermann
Affiliation:
Universitá degli Studi di Trieste, Dipartimento di Scienze Matematiche, 34100 Trieste, Italy

Extract

Let K be a knot in the 3-sphere S3; let m be a meridian and 1 a longitude of K. In [1] we gave a detailed study of the ‘π-orbifold group’ O(K): π1(S3\K)/〈m2〉 of the knot, where 〈m2〉 is the subgroup normally generated by the square of the meridian. In particular, we found out to what extent the π-orbifold group classifies knots (and links) and determines the symmetry group of a knot. In the present paper, we consider the groups Gn(K): = π1(S3\K)/〈ln〉. Our main results are the following.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Boileau, M. and Zimmermann, B.. The π-orbifold group of a link. Math. Z. 200 (1989), 187208.CrossRefGoogle Scholar
[2]Bcrde, G. and Zieschang, H.. Knots. De Gruyter Studies in Math. no. 5 (De Gruyter, 1985).Google Scholar
[3]Gabai, D.. Foliations and surgery on knots. Bull. Amer. Math. Soc. 15 (1986), 8387.CrossRefGoogle Scholar
[4]Gordon, C. McA. and Luecke, J.. Knots are determined by their complements. J. Amer. Math. Soc. 2 (1989), 371415.CrossRefGoogle Scholar
[5]Hempel, J.. Residual finiteness for 3-manifolds. In Combinatorial Group Theory and Topology, Ann. of Math. Studies no. 111 (Princeton University Press, 1987), pp. 379396.Google Scholar
[6]Johannson, K.. Homotopy Equivalences of 3-manifolds with Boundaries. Lecture Notes in Math. vol. 761 (Springer-Verlag, 1979).Google Scholar
[7]McCullough, D. and Miller, A.. Manifold covers of 3-orbifolds with geometric pieces. Topology Appl. 31 (1989), 169185.CrossRefGoogle Scholar
[8]Swarup, G. A.. A remark on cable knots. Bull. London Math. Soc. 18 (1986), 401402.CrossRefGoogle Scholar
[9]Soma, T., Ohshika, K. and Kojima, S.. Towards a proof of Thurston's geometrization theorem for orbifolds. (Preprint.)Google Scholar
[10]Takeuchi, Y.. Waldhausen's classification theorem for finitely uniformizable 3-orbifolds. (Preprint.)Google Scholar
[11]Thurston, W.. 3-manifolds with symmetry. (Preprint.)Google Scholar
[12]Tsau, C. M.. Isomorphisms and peripheral structures of knot groups. Math. Ann. 282 (1988), 343348.CrossRefGoogle Scholar
[13]Waldhausen, F.. On irreducible 3-manifolds which are sufficiently large. Ann. of Math. 87 (1986), 5688.CrossRefGoogle Scholar
[14]Whitten, W.. Knot complements and groups. Topology 26 (1987), 4144.Google Scholar
[15]Zimmermann, B.. Some groups which classify knots. Math. Proc. Cambridge Philos. Soc. 104 (1988), 417419.Google Scholar
[16]Zimmermann, B.. Isotopies of Seifert fibered, hyperbolic and euclidean 3-orbifolds. Quart. J. Math. Oxford Ser. (2) 40 (1989), 361369.CrossRefGoogle Scholar
[17]Zimmermann, B.. Isotopies of Haken-3-orbifolds. Quart. J. Math. Oxford Ser. (2) 40 (1989), 371376.CrossRefGoogle Scholar