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Spectral Gap and quantitative statistica...
Galatolo, Stefano...
Spectral Gap and quantitative statistical stability for systems with contracting fibers and Lorenz like maps by Galatolo, Stefano ( Author )
N.A
29-07-2015
We consider transformations preserving a contracting foliation, such that the associated quotient map satisfies a Lasota-Yorke inequality. We prove that the associated transfer operator, acting on suitable normed spaces, has a spectral gap (on which we have quantitative estimation). As an application we consider Lorenz-like two dimensional maps (piecewise hyperbolic with unbounded contraction and expansion rate): we prove that those systems have a spectral gap and we show a quantitative estimate for their statistical stability. Under deterministic perturbations of the system of size δ, the physical measure varies continuously, with a modulus of continuity O(δlogδ), which is asymptotically optimal for this kind of piecewise smooth maps.
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English
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MYR 0.00
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https://arxiv.org/abs/1507.08191
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