L'ensemble de rotation autour d'un point fixe

L'ensemble de rotation autour d'un point fixe

by Frédéric Le Roux

Book 350 of Astérisque --

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"Étant donné un point fixe pour un homéomorphisme de surface, on peut définir un ensemble de rotation autour du point fixe, qui est un invariant de conjugaison locale. Ce mémoire commence l'étude de cet invariant et de ces liens avec d'autres propriétés dynamiques, en particulier l'existence d'orbites périodiques, la différentiabilité au point fixe, l'indice de Poincaré-Lefschetz lorsque le point fixe est isolé."--Page 4 of cover. "The rotation set around a fixed point -- Given a fixed point for a surface homeomorphism, one can define a rotation set around this fixed point, which is a conjugacy invariant. We initiate the study of this invariant. In particular, we explore the links with other dynamical properties such as the existence of periodic orbits, the differentiability at the fixed point, the Poincaré-Lefschetz index when the fixed point is isolated."--Page 4 of cover.

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