[Nœuds twistés]
Soient K un nœud dans la 3-sphère S3, et D un disque dans S3 rencontrant K transversalement dans son intérieur. Pour des raisons de non-trivialité, on peut supposer que |D∩K|⩾2 pour toutes les isotopies de K dans S3−∂D. Soit KD,n le nœud de S3 obtenu en effectuant n twists sur K le long du disque D. Si le nœud original K n'est pas noué dans S3, on dit que KD,n est un nœud twisté. Nous décrivons les paires (K,D) et les entiers n, pour lesquels le nœud twisté KD,n est un nœud torique, satellite, ou hyperbolique.
Let K be a knot in the 3-sphere S3, and D a disk in S3 meeting K transversely in the interior. For non-triviality we assume that |D∩K|⩾2 over all isotopies of K in S3−∂D. Let KD,n(⊂S3) be the knot obtained from K by n twisting along the disk D. If the original knot is unknotted in S3, we call KD,n a twisted unknot. We describe for which pairs (K,D) and integers n, the twisted unknot KD,n is a torus knot, a satellite knot or a hyperbolic knot.
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Mohamed Aı̈t Nouh 1 ; Daniel Matignon 2 ; Kimihiko Motegi 3
@article{CRMATH_2003__337_5_321_0,
author = {Mohamed A{\i}\ensuremath{\ddot{}}t Nouh and Daniel Matignon and Kimihiko Motegi},
title = {Twisted unknots},
journal = {Comptes Rendus. Math\'ematique},
pages = {321--326},
publisher = {Elsevier},
volume = {337},
number = {5},
year = {2003},
doi = {10.1016/S1631-073X(03)00326-1},
language = {en},
}
Mohamed Aı̈t Nouh; Daniel Matignon; Kimihiko Motegi. Twisted unknots. Comptes Rendus. Mathématique, Volume 337 (2003) no. 5, pp. 321-326. doi : 10.1016/S1631-073X(03)00326-1. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/S1631-073X(03)00326-1/
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