Abstract
In this paper, we consider a mechanical counterexample which satisfies all conditions of Moser’s twist theorem except the smoothness condition. The model (also called ping-pong model) is the vertical motion of a bouncing ball on a plate which moves in the vertical direction as a \(C^{1+\alpha }\)-smooth periodic function with \(0\le \alpha <1/3\). We construct an unbounded orbit of this simple mechanical model to present a mechanical phenomenon violating Moser’s twist theorem.
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The work was supported by the National Natural Science Foundation of China (11871146).
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Ma, Z., Xu, J. A \(C^{1+\alpha }\) mechanical counterexample to Moser’s twist theorem. Z. Angew. Math. Phys. 72, 186 (2021). https://doi.org/10.1007/s00033-021-01618-3
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DOI: https://doi.org/10.1007/s00033-021-01618-3