Zorich's theorem is a result in the field of dynamical systems, specifically concerning the behavior of interval exchange transformations (IETs). An interval exchange transformation is a way of rearranging an interval by cutting it into subintervals and then permuting these intervals. Zorich's theorem states that for a generic interval exchange transformation with sufficiently smooth (e.g., piecewise continuous) functions, the trajectory of almost every point under the IET will exhibit unique ergodicity.
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