Outer billiards outside a regular dodecagon
- Authors: Rukhovich F.D.1
-
Affiliations:
- Moscow Institute of Physics and Technology
- Issue: Vol 485, No 4 (2019)
- Pages: 415-421
- Section: Mathematics
- URL: https://journals.eco-vector.com/0869-5652/article/view/13542
- DOI: https://doi.org/10.31857/S0869-56524854415-421
- ID: 13542
Cite item
Full Text
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
Author for correspondence.
Email: dprpavlin@gmail.com
Russian Federation, 9, Institutskij, Dolgoprudny, Moscow region, 141701
References
- Rukhovich F. Outer Billiards Outside Regular Dodecagon: Computer Proof of Periodicity of Almost All Orbits and Existence of an Aperiodic Point. arXiv:1809. 03791.
- Rukhovich F. Outer Billiards. arXiv:1505.06332.
- Табачников С. Внешние биллиарды // УМН. 1993. Т. 48. В. 6 (294). С. 75-102.
- Bedaride N., Cassaigne J. Outer Billiards Outside Regular Polygons // J. London Math. Soc. 2011. V. 84. Iss. 2. P. 303-324. https://doi.org/10.1112/jlms/jdr010, arXiv:0912.0563.
- Tabachnikov S. Geometry and Billiards. Student Mathematical Library. Providence (RI): Amer. Math. Soc., 2005. V. 30.
- Tabachnikov S. On the Dual Billiard Problem // Adv. Math. 1995. V. 115 (2). P. 221-249.
- Schwartz R. E. Outer Billiards, Arithmetic Graph and the Octagon. arXiv:1006.2782, 2010.
- Schwartz R. E. The Octagonal PETs // Math. Surv. and Monogr. 2014. V. 197.