Groups of real analytic diffeomorphisms of the circle with a finite image under the rotation number function

Matsuda, Yoshifumi

doi:10.5802/aif.2477

Groups of real analytic diffeomorphisms of the circle with a finite image under the rotation number function
[Des groupes de difféomorphismes analytiques réels du cercle qui ont une image finie sous l’application du nombre de rotation]

Matsuda, Yoshifumi

Annales de l'Institut Fourier, Tome 59 (2009) no. 5, pp. 1819-1845.

Résumé
Abstract

Nous considérons des groupes de difféomorphismes directs et analytiques réels du cercle qui ont une image finie sous l’application du nombre de rotation. Nous montrons que si un tel groupe est non-discret pour la topologie $C^{1}$ alors il a une orbite finie. Comme corollaire, nous montrons que si un tel groupe n’a aucune orbite finie alors chacun de ses sous-groupes contient soit un sous-groupe cyclique d’indice fini, soit un sous-groupe libre non-abélien.

We consider groups of orientation-preserving real analytic diffeomorphisms of the circle which have a finite image under the rotation number function. We show that if such a group is nondiscrete with respect to the $C^{1}$ -topology then it has a finite orbit. As a corollary, we show that if such a group has no finite orbit then each of its subgroups contains either a cyclic subgroup of finite index or a nonabelian free subgroup.

MR 2573191 | Zbl 1181.37063

DOI : https://doi.org/10.5802/aif.2477
Classification : 37E45, 37E10, 57S05, 37B05, 20F67
Mots clés : nombre de rotation, difféomorphisms du cercle, groupes, champs du vecteur locaux

BibTeX
RIS

@article{AIF_2009__59_5_1819_0,
     author = {Matsuda, Yoshifumi},
     title = {Groups of real analytic diffeomorphisms of the circle with a finite image under the rotation number function},
     journal = {Annales de l'Institut Fourier},
     pages = {1819--1845},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {59},
     number = {5},
     year = {2009},
     doi = {10.5802/aif.2477},
     mrnumber = {2573191},
     zbl = {1181.37063},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/aif.2477/}
}

TY  - JOUR
AU  - Matsuda, Yoshifumi
TI  - Groups of real analytic diffeomorphisms of the circle with a finite image under the rotation number function
JO  - Annales de l'Institut Fourier
PY  - 2009
DA  - 2009///
SP  - 1819
EP  - 1845
VL  - 59
IS  - 5
PB  - Association des Annales de l’institut Fourier
UR  - http://archive.numdam.org/articles/10.5802/aif.2477/
UR  - https://www.ams.org/mathscinet-getitem?mr=2573191
UR  - https://zbmath.org/?q=an%3A1181.37063
UR  - https://doi.org/10.5802/aif.2477
DO  - 10.5802/aif.2477
LA  - en
ID  - AIF_2009__59_5_1819_0
ER  -

Matsuda, Yoshifumi. Groups of real analytic diffeomorphisms of the circle with a finite image under the rotation number function. Annales de l'Institut Fourier, Tome 59 (2009) no. 5, pp. 1819-1845. doi : 10.5802/aif.2477. http://archive.numdam.org/articles/10.5802/aif.2477/

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