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arXiv 1108.0987math.DS
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常曲率曲面上台球的三周期轨道

Three-Period Orbits in Billiards on the Surfaces of Constant Curvature

Victoria Blumen, Ki Yeun Kim, Joe Nance, Vadim Zharnitsky

摘要:

Wojtkovski [9]基于Jacobi场的一种方法被应用于研究双曲平面和二维球面上台球中的三周期轨道集。发现双曲平面上台球中的3周期轨道集与平面情形一样,具有零测度。对于球面,得到了Baryshnikov定理的一个新的证明:只要满足一个关于轨道长度的自然条件,3周期轨道可以形成一个正测度集。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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