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| WEPCH076 |
Renormalization Group Reduction of the Frobenius-Perron Operator
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2095 |
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- S.I. Tzenov
Universita' degli Studi di Salerno, Dipartimento di Fisica E.R. Caianiello, Baronissi
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The Renormalization Group (RG) method is adopted as a tool for a constructive analysis of the properties of the Frobenius-Perron Operator. The renormalization group reduction of a generic symplectic map in the case, where the unperturbed rotation frequency of the map is far from structural resonances driven by the kick perturbation has been performed in detail. It is further shown that if the unperturbed rotation frequency is close to a resonance, the reduced RG map of the Frobenius-Perron operator (or phase-space density propagator) is equivalent to a discrete Fokker-Planck equation for the renormalized distribution function. The RG method has been also applied to study the stochastic properties of the standard Chirikov-Taylor map.
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