A simple proof of Gevrey estimates for expansions of quasi-periodic orbits: dissipative models and lower dimensional tori

Adrián P. Bustamante, Rafael de la Llave

We consider standard-like/Froeschlé maps with a dissipation and nonlinear perturbation. That is \[ T_\varepsilon(p,q) = \left( (1 - γ\varepsilon^3) p + μ+ \varepsilon V'(q), q + (1…