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Time-symmetric cycles. (English) Zbl 1016.37018
Summary: The main result of this note is that given any two time-symmetric cycles, one can find a time-symmetric extension of one by the other. This means that given a time-symmetric cycle, both time-symmetric doubles and square roots can be found.
MSC:
37E05 Dynamical systems involving maps of the interval (piecewise continuous, continuous, smooth)
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