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Statistical properties of piecewise smooth hyperbolic systems in high dimensions
We study smooth hyperbolic systems with singularities and their SRB
measures. Here we assume that the singularities are submanifolds, the hyperbolicity
is uniform aside from the singularities, and one-sided derivatives exist on the singularities. We prove that the ergodic SRB measures exist, are finitely many, and
mixing SRB measures enjoy exponential decay of correlations and a central limit
theorem. These properties have been proved previously only for two-dimensional
systems.