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 Títol: Exponentially small splitting of separatrices for perturbed integrable standard-like maps Autor: Delshams Valdés, Amadeu ; Ramírez Ros, Rafael Data: 1997 Tipus de document: Article Resum: We consider fast quasiperiodic perturbations with two frequencies $(1/\varepsilon,\gamma/\varepsilon)$ of a pendulum, where $\gamma$ is the golden mean number. The complete system has a two-dimensional invariant torus in a neighbourhood of the saddle point. We study the splitting of the three-dimensional invariant manifolds associated to this torus. Provided that the perturbation amplitude is small enough with respect to $\varepsilon$, and some of its Fourier coefficients (the ones associated to Fibonacci numbers), are separated from zero, it is proved that the invariant manifolds split and that the value of the splitting, which turns out to be exponentially small with respect to $\varepsilon$, is correctly predicted by the Melnikov function. URI: http://hdl.handle.net/2117/864 Apareix a les col·leccions: EGSA - Equacions Diferencials, Geometria, Sistemes Dinàmics i de Control, i Aplicacions. Articles de revistaDepartaments de Matemàtica Aplicada. Articles de revista Comparteix: