Three-Period Orbits in Billiards on the Surfaces of Constant Curvature
Autor: | Blumen, Victoria, Kim, Ki Yeun, Nance, Joe, Zharnitsky, Vadim |
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Rok vydání: | 2011 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | An approach due to Wojtkovski [9], based on the Jacobi fields, is applied to study sets of 3-period orbits in billiards on hyperbolic plane and on two-dimensional sphere. It is found that the set of 3-period orbits in billiards on hyperbolic plane, as in the planar case, has zero measure. For the sphere, a new proof of Baryshnikov's theorem is obtained which states that 3-period orbits can form a set of positive measure provided a natural condition on the orbit length is satisfied. Comment: 10 pages, 3 figures |
Databáze: | arXiv |
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