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Название: Fractal Properties of Critical Invariant Curves
Авторы: Hunt B.R., Khanin K.M., Sinai Y.G.
We examine the dimension of the invariant measure for some singular circle homeomorphisms for a variety of rotation numbers, through both the thermodynamic formalism and numerical computation. The maps we consider include those induced by the action of the standard map on an invariant curve at the critical parameter value beyond which the curve is destroyed. Our results indicate that the dimension is universal for a given type of singularity and rotation number, and that among aU rotation numbers, the golden mean produces the largest dimension