Abstract :
[en] The paper studies the properties of a sinusoidally vibrating wedge
billiard as a model for 2D impact juggling. It is shown that some periodic orbits
that are unstable in the elastic xed wedge become exponentially stable in the
(non-)elastic vibrating wedge. These orbits are linked with some classical juggling
patterns, providing an interesting benchmark for the study of the frequency-locking
properties in human rhythmic tasks.
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