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A second order expansion of the separatrix map for trigonometric perturbations of a priori unstable systems (1503.08301v2)
Published 28 Mar 2015 in math.DS
Abstract: In this paper we study a so-called separatrix map introduced by Zaslaskii-Filonenko [ZF68] and studied by Treschev and Piftankin [Tre98, Tre02, Pif06, PT07]. We derive a second order expansion of this map for trigonometric perturbations. In [CK15, GK15], and [KZZ15], applying the results of the present paper, we describe a class of nearly integrable deterministic systems with stochastic diffusive behavior.
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