台球在椭圆重温
Billiards in ellipses revisited
摘要:
我们证明了D.关于椭圆中的周期台球轨道。例如,一个周期性的台球多边形的角的余弦和在这种多边形的单参数族中保持不变(由于庞斯莱多孔性而存在)。在我们的证明中,我们使用几何和复分析方法。
英文摘要:
We prove some recent experimental observations of D. Reznik concerning periodic billiard orbits in ellipses. For example, the sum of cosines of the angles of a periodic billiard polygon remains constant in the one-parameter family of such polygons (that exist due to the Poncelet porism). In our proofs, we use geometric and complex analytic methods.
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。