Spectrum of the Frobenius-Perron operator for systems with stochastic perturbation

Details Spectrum of the Frobenius-Perron operator for systems with stochastic perturbation Spectrum of the Frobenius-Perron operator for systems with stochastic perturbation

2001-06-04

arxiv.org/abs/nlin/0106003v1

Physics Letters A 289 (2001) 306-312

Nonlinear Sciences

Chaotic Dynamics

LaTeX2e, 11 pages, 6 figures (EPS format)

Scientific paper

10.1016/S0375-9601(01)00628-4

We analyze the problem of evolution in a system with stochastic perturbation and point out that analytic properties of the noise present in the system might determine spectral properties of the evolution operator (Frobenius-Perron operator). We also propose a method for approximation of the spectrum and eigenvectors of the FP-operator by applying a suitable noise. Moreover we demonstrate that the eigenvalues of the FP-operator located outside the essential spectrum are robust not only against local perturbation but also against the non local perturbation and that these stable eigenvalues have a direct physical meaning: they determine the rate of the exponential decay of correlation in the system.

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