Outer Billiard outside a Regular Dodecagon


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Abstract

The existence of an aperiodic orbit for an outer billiard outside a regular dodecagon is proved. It is shown that almost all orbits of such an outer billiard are periodic, and all possible periods are explicitly listed. The proofs of the theorems make use of computer calculations.

About the authors

F. D. Rukhovich

Moscow Institute of Physics and Technology (State University)

Author for correspondence.
Email: dprpavlin@gmail.com
Russian Federation, Dolgoprudnyi, Moscow oblast, 141700

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