Existence d'orbites quasi-périodiques dans les attracteurs de Birkhoff. (Existence of quasiperiodic orbits in Birkhoff attractors)
For each number \(\rho\) between the lower and the upper rotation number of the Birkhoff attractor of a dissipative monotone twist map, there is a periodic or quasiperiodic orbit with rotation number \(\rho\).
scientific article; zbMATH DE number 3971825