Nous étudions le problème du centre de Siegel-Schröder, sur la linéarisation de germes analytiques de plusieurs variables complexes, dans la catégorie Gevrey-. Nous introduisons une nouvelle condition arithmétique de type de Bruno, sur la partie linéaire du germe, qui assure l’existence d’une linéarisation formelle Gevrey-. Nous l’utilisons pour démontrer la stabilité effective, c’est-à-dire stabilité pour un temps fini mais long, d’un voisinage du point fixe, pour le germe analytique.
We study the Siegel-Schröder center problem on the linearization of analytic germs of diffeomorphisms in several complex variables, in the Gevrey-, category. We introduce a new arithmetical condition of Bruno type on the linear part of the given germ, which ensures the existence of a Gevrey- formal linearization. We use this fact to prove the effective stability, i.e. stability for finite but long time, of neighborhoods of the origin, for the analytic germ.
Keywords: Siegel center problem, Gevrey class, Bruno condition, effective stability, Nekoroshev like estimates
Mot clés : problème du centre de Siegel, classe Gevrey, condition de Bruno, stabilité effective, estimations type Nekoroshev
@article{AIF_2004__54_4_989_0, author = {Carletti, Timoteo}, title = {Exponentially long time stability for non-linearizable analytic germs of $({\mathbb {C}}^n,0)$.}, journal = {Annales de l'Institut Fourier}, pages = {989--1004}, publisher = {Association des Annales de l{\textquoteright}institut Fourier}, volume = {54}, number = {4}, year = {2004}, doi = {10.5802/aif.2040}, mrnumber = {2111018}, zbl = {1063.37043}, language = {en}, url = {http://www.numdam.org/articles/10.5802/aif.2040/} }
TY - JOUR AU - Carletti, Timoteo TI - Exponentially long time stability for non-linearizable analytic germs of $({\mathbb {C}}^n,0)$. JO - Annales de l'Institut Fourier PY - 2004 SP - 989 EP - 1004 VL - 54 IS - 4 PB - Association des Annales de l’institut Fourier UR - http://www.numdam.org/articles/10.5802/aif.2040/ DO - 10.5802/aif.2040 LA - en ID - AIF_2004__54_4_989_0 ER -
%0 Journal Article %A Carletti, Timoteo %T Exponentially long time stability for non-linearizable analytic germs of $({\mathbb {C}}^n,0)$. %J Annales de l'Institut Fourier %D 2004 %P 989-1004 %V 54 %N 4 %I Association des Annales de l’institut Fourier %U http://www.numdam.org/articles/10.5802/aif.2040/ %R 10.5802/aif.2040 %G en %F AIF_2004__54_4_989_0
Carletti, Timoteo. Exponentially long time stability for non-linearizable analytic germs of $({\mathbb {C}}^n,0)$.. Annales de l'Institut Fourier, Tome 54 (2004) no. 4, pp. 989-1004. doi : 10.5802/aif.2040. http://www.numdam.org/articles/10.5802/aif.2040/
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